An entity directed by HSN's Rafi Assouline and Rebel Property's Allen Linz has filed plans for an impressive new precinct in Woolloomooloo.

The major mixed-use development would transform a prominent William Street site into a new residential village anchored by affordable housing and a large public park.

The proposal, submitted as a State Significant Development Application, covers 164-172 and 174-194 William Street, a 6,398 sqm site between Forbes Street and Dowling Street on the southern edge of Woolloomooloo.

Designed by fjcstudio in collaboration with Bangawarra, Studio Bright and Tribe Studio Architects, the scheme would deliver 227 apartments across four residential buildings ranging in height up to 18 storeys, alongside retail space, public domain improvements and a new publicly accessible park.

<img alt="Rebel" data-entity-type="file" data-entity-uuid="0eb59b7c-914a-4a5c-b849-3a56749f5e93" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-06-12%20at%2011.18.51%E2%80%AFAM.png?VersionId=mxM6EEqeoLjrCiTlCzTKTvzpKuh6kSkH" />

It's another design scheme for Rebel, who took <a href="https://www.apartments.com.au/news/nsw/first-look-rebel-property-group-takes-woolloomooloo-precinct-to-nsw-government">concept plans to the NSW Gov late last year</a>.

The latest plans will be a mix of 167 build-to-sell apartments and 60 affordable apartments, with the affordable housing component representing 15 per cent of the project's gross floor area. The apartment mix includes 12 one-bedroom, 53 two-bedroom, 89 three-bedroom apartments and 13 penthouses, while the affordable housing component would comprise 42 one-bedroom and 18 two-bedroom apartments.

<img alt="Rebel" data-entity-type="file" data-entity-uuid="3b3d4553-8a8c-4af5-aa8c-519ffb1e28c6" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-06-12%20at%2011.20.12%E2%80%AFAM.png?VersionId=_Yb6ibN7eDnOtQjCNDK2eviORa4qzgv." />

Rebel Property is seeking to take advantage of the NSW Government's infill affordable housing bonus provisions under the Housing SEPP, which provide additional floor space and height in exchange for the delivery of affordable housing for a minimum of 15 years. The planning pathway allows a 30 per cent increase in floor space ratio and building height where 15 per cent of the development is dedicated to affordable housing.

&nbsp;

At the centre of the development is a 1,356 sqm sunlit public park designed to become a new community gathering space at the gateway to Woolloomooloo. The park would be complemented by a network of pedestrian laneways connecting William Street with the surrounding streets, improving permeability through what is currently a largely impermeable block.

<img alt="Rebel" data-entity-type="file" data-entity-uuid="257af931-a393-4007-8c6d-7219796df58d" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/Screenshot%202026-06-12%20at%2011.20.51%E2%80%AFAM.png?VersionId=KAHy94GrhaReFsWTGDKfy39EDJ8gEEv4" />

The design team says the public domain has been heavily influenced by the site's topography and Aboriginal cultural heritage, drawing on the escarpments, gullies and landscape characteristics that historically defined the area before urbanisation. The landscape design has been developed in partnership with First Nations consultancy Bangawarra.

The project would be delivered across four separate buildings. The William Street East and William Street West buildings, designed by fjcstudio, would contain the majority of the apartments. Melbourne-based Studio Bright has designed the Forbes Street building, while Tribe Studio Architects is responsible for the Dowling Street building.

Rebel had secured approval for the concept plans late last year.

Joel Robinson

First look: HSN, Rebel, advances Woolloomooloo precinct plans

A locally heritage-listed furniture showroom on Water Street is set to become the centrepiece of a new mixed-use residential development as local developer&nbsp;<a href="https://www.apartments.com.au/developers/keylin-group">Keylin</a> seeks approval for <a href="https://www.apartments.com.au/new-apartments/lotus-on-water-street-290-water-street-fortitude-valley-qld-4006">Lotus on Water Street</a>, a 15-storey project on the Fortitude Valley side of Spring Hill.

The proposal spans 290 Water Street and 137-141 Warry Street, combining several properties into a 2,869 sqm site that sits between Fortitude Valley, Spring Hill and the rapidly evolving Victoria Park precinct. Keylin's plans would deliver 132 apartments alongside new retail, hospitality and commercial space, while retaining and repurposing the historic Brunswick Home Furnishers Showroom that fronts Water Street.

Designed by <a href="https://www.apartments.com.au/architects/jackson-teece">Jackson Teece</a>, Lotus on Water Street comprises a 12-storey residential tower rising above a three-storey podium and communal rooftop terrace. The development includes 76 apartments classified as multiple dwellings and a further 56 units proposed as short-term accommodation, designed to be flexibly used as either accommodation or permanent residences. The apartment mix comprises six one-bedroom, 54 two-bedroom and 16 three-bedroom homes.

<img alt="First look: Keylin unveils heritage-led Lotus on Water Street tower in Fortitude Valley" data-entity-type="file" data-entity-uuid="9822bb79-6c49-49c9-95ba-319e8c8d81c3" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/fortitude%20valley%20front.png?VersionId=ioW8zbN4UVebbLetTFuv92t.HkdgfR5e" />

Residents would have access to an extensive rooftop recreation level spanning more than 1,200 sqm of communal open space. Plans include a pool, gym, sauna, infrared sauna, yoga area, library, private dining room, barbecue facilities and landscaped entertainment spaces, making the rooftop the project's largest shared amenity offering.

At street level, the proposal focuses on the adaptive reuse of the heritage buildings along Water Street, where 518 sqm of retail and commercial space is planned across shop, office and food and drink outlet uses. A permeable residential lobby would be positioned between the retained heritage buildings, creating a pedestrian connection between the historic streetscape and the new tower behind.

<img alt="First look: Keylin unveils heritage-led Lotus on Water Street tower in Fortitude Valley" data-entity-type="file" data-entity-uuid="269cf3e0-7d13-48bf-a318-05a00deb5c10" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/fortitude%20valley%20podium.png?VersionId=DLXmTCLsp6GOcLpQ0h.0z7wKCw59EhN_" />

The heritage retention strategy is central to the scheme. The development application notes that the Brunswick Home Furnishers Showroom and adjoining heritage buildings will remain, with only non-significant structures on the site earmarked for removal under a previously issued Heritage Exemption Certificate. Levels one and two of the new podium are recessed behind the heritage façades to maintain their prominence within the streetscape.

Jackson Teece has drawn inspiration from the site's manufacturing history when designing the podium. The planning documents state that the façade incorporates perforated metal screening that references the woven and rattan furniture historically produced on the site. Cascading and climbing plants are integrated throughout the podium to soften the building's presentation and screen parking levels behind. The landscape strategy also informs the project's name, Lotus on Water Street, drawing on the historic Spring Hollow waterholes that once ran through Spring Hill and the blue water lilies associated with Meeanjin, Brisbane's traditional name.

The proposal also incorporates the neighbouring property at 141 Warry Street, currently occupied by a healthcare service. The existing building would remain, with nine dedicated parking spaces allocated within the new development to support its ongoing operation. In total, Lotus on Water Street proposes 117 car spaces, including 110 resident spaces and seven visitor bays, alongside 100 bicycle spaces.

<img alt="First look: Keylin unveils heritage-led Lotus on Water Street tower in Fortitude Valley" data-entity-type="file" data-entity-uuid="70cf07bc-4fd8-4e70-92dd-be8b21c4e4f0" src="https://s3.ap-southeast-2.amazonaws.com/www.urban.com.au/s3fs-public/inline-images/fortitude%20valley%20site.png?VersionId=txlxrJImM0Sm_vTzHVKh5DDUkyL_CiiA" />

The site sits within the Spring Hill East Precinct of the Spring Hill Neighbourhood Plan and is positioned around 650 metres from both Fortitude Valley Station and Exhibition Station. It is also within walking distance of the King Street precinct, Royal Brisbane and Women's Hospital, Herston Quarter and Victoria Park, which is earmarked to become a major venue precinct ahead of the Brisbane 2032 Olympic and Paralympic Games.

Planning documents describe the location as a key gateway between Spring Hill and Fortitude Valley and highlight the area's increasing importance as new transport infrastructure and Olympic-related investment reshape Brisbane's inner north. The development team argues the project will contribute additional housing supply while activating a section of Water Street that has historically received less investment than other parts of the Valley.

Keylin has become increasingly active across Brisbane and southeast Queensland, assembling sites in strategic inner-city locations. They are currently selling and delivering <a href="https://www.apartments.com.au/new-apartments/oria-spring-hill-447-gregory-terrace-spring-hill-qld-4000">Oria Spring Hill</a>, just over 140 apartments due for completion in 2027.

Keylin plans heritage-led Lotus on Water Street apartment development in Fortitude Valley

Roseville is poised for a wave of new apartment development following the NSW Government's rezoning of land around Roseville Station under its Transport Oriented Development program.

The new planning controls have unlocked significant development potential within walking distance of the station, with a number of sites expected to be amalgamated and redeveloped in the coming years as developers seek to take advantage of the increased density allowances.

One of the more restrained developments in the precinct, and set among the first to be delivered having commenced well before the recent changes, is Hyecorp's Juliet. The boutique apartment project is already well under construction and remains on track to welcome residents by the end of the year, offering a markedly different proposition to many of the larger-scale developments now likely to emerge across the suburb.

[smartcode_project:default project_id=7395 project_image_fid=278194]

<a href="https://www.apartments.com.au/new-apartments/juliet-roseville-64-pacific-highway-roseville-nsw-2069">Juliet</a> will comprise just&nbsp;34 one-, two-, and three-bedroom apartments opposite Roseville Station. For Hyecorp, which has delivered projects across Sydney's Lower North Shore for more than three decades, Roseville presented a rare opportunity to address a growing gap in the market.

"<a href="https://www.apartments.com.au/developments/roseville-nsw-2069">Roseville</a> has long been one of the North Shore's most tightly held and desirable suburbs, offering a unique combination of village charm, established greenery, excellent transport connections, and proximity to some of Sydney's best schools and lifestyle amenities," Hyecorp said.

"We recognised a growing demand from local homeowners seeking to downsize without leaving the community they have built their lives around. The location presented a rare opportunity to create homes that cater specifically to that buyer profile."

[smartcode_project:default project_id=7395 project_image_fid=278196]

The six-level development has been designed by <a href="https://www.apartments.com.au/architects/pbd-architects">PBD Architects</a> as a collection of residences that feel more like homes than apartments. The brief centred generous floorplans, abundant natural light, quality finishes, and strong connections to outdoor space.

PBD Architects drew inspiration from Roseville's established garden suburb character, creating a building that sits comfortably within its surroundings rather than dominating them. The architecture incorporates natural materials, soft forms, layered landscaping, expansive balconies, and generous setbacks to strengthen the connection between residents and the suburb's leafy environment.

"The focus was on designing spacious, house-like residences for discerning owner-occupiers and downsizers who wanted to remain on the North Shore without compromising on comfort, privacy, or design," PBD said.&nbsp;

"Every apartment was to feel considered, timeless, and highly functional."

[smartcode_project:default project_id=7395 project_image_fid=278195]

Inside, residences feature engineered timber flooring, stone kitchen benchtops and splashbacks, integrated Fisher &amp; Paykel appliances, ducted air conditioning, and large outdoor entertaining areas designed to take advantage of district and treetop views.

Residents will also have access to a rooftop barbecue and lounge area, alongside practical amenities including parcel lockers, EV charging capability, bicycle storage, a dog wash bay, and a basement car wash facility.

The majority of purchasers so far have been local owner-occupiers from Roseville, Lindfield, Chatswood, Killara, and the broader Upper North Shore, many of whom are transitioning from larger family homes.

"Buyers are looking for spacious, house-like apartments that allow them to downsize without feeling like they are sacrificing comfort or functionality," Hyecorp noted.

"They value large kitchens, generous living areas, ample storage, quality finishes, secure parking, lift access, and low-maintenance living."

[smartcode_project:default project_id=7395 project_image_fid=278204]

Juliet sits directly opposite Roseville Train Station and within walking distance of Roseville Village, while Chatswood's retail and dining precinct is only minutes away. The development is also surrounded by some of Sydney's most established schools, including Roseville College, Ravenswood, Pymble Ladies' College, and Knox Grammar, as well as nearby parklands and golf courses.

Juliet is currently more than 75 per cent sold ahead of its anticipated completion in late 2026.

[smartcode_project_cta:default project_id=7395]

Juliet to sit quietly amid Roseville apartment boom

Sherpa Property Group has unveiled the third instalment of its Flourish series, securing full approval for the two-tower, $500 million Flourish Soleira development in Palm Beach.

<a href="https://www.apartments.com.au/new-apartments/flourish-soleira-1150-1154-gold-coast-highway-palm-beach-qld-4221">Flourish Soleira</a> will rise from a prominent site in the commercial heart of Palm Beach, the long-time home of Cash Converters and a range of local retailers.

The project will introduce a new retail and dining precinct at ground level, beneath 286 apartments.

[smartcode_project:default project_id=150017 project_image_fid=370959]

“We’re very committed to not only providing affordable residential offerings that are much needed in Palm Beach, but also delivering a vibrant new commercial heart that complements the extraordinary growth of the southern Gold Coast,” Sherpa Property Group founder Christie Leet said.

The development will sit under Sherpa's Flourish brand, which is aimed at providing a pathway into the beachside suburb for locals, first-home buyers and downsizers. In a move designed to assist first-home buyers entering the market, Sherpa has reserved all one and two-bedroom, one-bathroom apartments exclusively for eligible first-home buyers.

[smartcode_project:default project_id=150017 project_image_fid=370964]

“Our vision through Flourish is to create a vibrant retail and lifestyle focal point within the Palm Beach centre zone, delivering thriving communities underpinned by lifestyle-rich locations,” Leet said.

“So far, Flourish has been an incredible success, and we hope to carry this momentum as we progress the next two Flourish projects in Palm Beach.”

[smartcode_project:default project_id=150017 project_image_fid=371430]

Located across 1150-1164 Gold Coast Highway and 3 Sixth Avenue, the development will comprise two towers. The northern tower will deliver 154 apartments, while the southern tower will add a further 132 residences, helping address ongoing demand for new apartments in the tightly held coastal suburb.

Flourish Soleira will also feature the most extensive rooftop amenity offering ever delivered in Palm Beach.

The two towers will be connected by a skybridge, with residents gaining access to a rooftop recreation deck featuring a full-width swimming pool, hot and cold plunge pools, wellness spaces, a gymnasium, private dining facilities, massage treatment rooms, barbecue areas, a basketball court, golf simulator, indoor and outdoor dining spaces, sun lounges and extensive landscaping.

LPS Group is expected to start construction later this year.

Sherpa is already well advanced on construction of its debut Flourish project, Flourish Amargo, located just around the corner from Soleira. Meanwhile, Flourish Oasis, positioned opposite Amargo, recently commenced construction and has nearly sold out its collection of 47 apartments.

[smartcode_project_cta:default project_id=150017]

Sherpa unveils $500m mixed-use Palm Beach precinct, Flourish Soleira

Are mortgage holders set to get a reprieve from the RBA in 2026?

Big Four bank NAB believes so. They are now expecting the next move from the RBA to be a cut, rather than a hike, which they had pencilled in for August. They are unsure of the timing of the cut however, they note in their latest&nbsp;NAB Economics RBA Watch.

NAB Chief Economist, Dr Sally Auld, said recent data suggests the economy has lost momentum and the outlook for rates has shifted, noting that the broader economic backdrop has changed since earlier in the year.

“The next move in the cash rate is likely to be down, but the timing is uncertain," Dr Auld said.

"In February, growth was above trend, the economy was operating above capacity and there was uncertainty over the restrictiveness of rates. None of these conditions exist today,” she outlined.

Dr Auld said recent data pointed to softer momentum across the economy while acknowledging that at the same time, uncertainty remains a key feature of the outlook.

“Both Q1 GDP data and the NAB business survey suggest momentum in the economy has slowed, meaning that growth has likely peaked for the cycle. That said, we are cognisant there is still considerable uncertainty around the outlook, both with respect to activity and inflation.”

Dr Auld said inflation risks and labour market outcomes would be important to watch.

“On the prices side, we are still forecasting above target core inflation through to mid-2027. Margins will compress and weaker labour market outcomes are a risk.”

She said tighter financial conditions are expected to weigh on housing and activity.

“Tighter financial conditions will be reflected in a slowing in house price growth and housing credit growth. In summary, we have greater conviction that the next move in rates is down, but less conviction on the timing.”

Mortgage relief? NAB forecasts RBA rate cut, not hike, after softer economic conditions

Native Birds

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GUSET OBSERVATION
Glossy Black-Cockatoos used to be common on South Australia’s Kangaroo Island until possums started eating their eggs and chicks. After volunteers helped protect nest hollows and erect safe nest boxes, the population more than doubled.
But how do you measure such success? How do you compare cockatoo nest protection with any other investment in conservation?
Unfortunately, we have few ways to compare and track the different efforts many people may be making to help conserve our natural treasures.
That’s why a group of us from a dozen Australian universities along with scientists and private researchers around the world have created <a href="https://onlinelibrary.wiley.com/doi/10.1111/cobi.13220">metrics of progress</a> for both our understanding of how to manage threats of different intensity, and how well that management has been implemented. We also provide guidance on what still needs doing before a threat no longer needs active management.
For the first time, we looked at every threatened bird in Australia to see how well – or not – they are managed. Hopefully, we can use this to avoid compounding our disastrous <a href="https://www.theguardian.com/environment/2018/feb/13/a-national-disgrace-australias-extinction-crisis-is-unfolding-in-plain-sight">recent track record</a> of extinctions in Australia.
The state of Australian birds
What we did differently was collect the same data across different species, which meant we could compare conservation efforts across all bids.
<a href="https://images.theconversation.com/files/246799/original/file-20181122-182062-zfg4ry.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/246799/original/file-20181122-182062-zfg4ry.jpg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" alt=""></a>
The mallee emu-wren is unique to Australia and endangered due to habitat loss. <a class="source" href="https://www.flickr.com/photos/128578170@N06/24288853338/in/photolist-D1jHTq-4b9JJc" target="_blank">Nik Borrow/Flickr</a>
When we applied these metrics to Australia’s 238 threatened bird species, the results were both encouraging and daunting. The good news is that we understand how to reduce the impact of about 52% of the threats – although of course that means we know little about how to deal with the other 48%.
But the situation is decidedly worse when we consider how effectively we are putting that research into practice. Only 43% of threats are being managed in any way at all – and just a third of the worst threats – and we are achieving good outcomes for just 20%.
But at least we now know where we are. We can celebrate what we have accomplished, appreciate how much needs doing, and direct our efforts where they will have the greatest benefit.
The threats to our birds
Introduced mammals, particularly <a href="https://www.sciencedirect.com/science/article/abs/pii/S0006320717302719" target="_blank">cats</a>, have been (and continue to be) a significant threat to Australian birds. Although we have successfully eradicated feral animals on many islands, saving many species, they remain a grave threat on the mainland.
The effect of climate change is becoming the top priority threat for the future. About half of all threatened birds are likely to be affected by increases in drought, fire, heat or sea level. Given the policy prevarication at a global level, targeted research is essential if birds are to be helped to cope.
By looking at multiple species, we can also identify what helps successful conservation. <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/emr.12335" target="_blank">Monitoring</a>, for instance, has a big impact on threat alleviation – better monitored species receive more attention.
There is also – unsurprisingly – a strong connection between knowledge of how to manage a threat and successful application of that knowledge. Often policy people want instant action, but our work suggests that action before knowledge will squander money.
Where to from here?
So what can we use this analysis for? One use is helping species <a href="http://www.nespthreatenedspecies.edu.au/news/no-surprises-no-regrets-identifying-australias-most-imperilled-animal-species" target="_blank">close to extinction</a>.
Using the same approach for multiple species groups, it is apparent that, while birds and mammals are in a parlous state, the most threatened fish are far worse off. We can also identify some clear priorities for action.
Finally, we must acknowledge this work emerged not from a government research grant, but from a non-government organisation (NGO). BirdLife Australia needed an overview of the country’s performance with threatened birds and was able to draw on the volunteered skills of biologists and mathematicians from around the country, and then the world.
Indeed, one of the future projects will be using the new assessment tool to see just how much of the conservation action around the country is being driven by volunteers, from the many people who contributed their knowledge and skills to this paper through to those keeping glossy black-cockatoo chicks safe on Kangaroo Island.<img src="https://counter.theconversation.com/content/107432/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important; text-shadow: none !important;">
Stephen Garnett, Professor of Conservation and Sustainable Livelihoods, Charles Darwin University
Alienor Chauvenet, Lecturer, Griffith University
April Reside, Researcher, Centre for Biodiversity and Conservation Science, The University of Queensland
Brendan Wintle, Professor Conservation Ecology, University of Melbourne
David Lindenmayer, Professor, The Fenner School of Environment and Society, Australian National University
David M Watson, Professor in Ecology, Charles Sturt University
Elisa Bayraktarov, Postdoctoral Research Fellow in Conservation Biology, The University of Queensland
Hayley Geyle, Research Assistant, Charles Darwin University; Hugh Possingham, Professor, The University of Queensland
Ian Leiper, Geospatial Scientist, Charles Darwin University
James Watson, Professor, The University of Queensland
Jim Radford, Principal Research Fellow, Research Centre for Future Landscapes, La Trobe University
John Woinarski, Professor (conservation biology), Charles Darwin University
Les Christidis, Professor, Southern Cross University
Martine Maron, ARC Future Fellow and Associate Professor of Environmental Management, The University of Queensland
Molly K Grace, Postdoctoral Fellow in Zoology, University of Oxford
Paul McDonald, Associate professor, University of New England
Sarah Legge, Associate Professor, Australian National University
This article is republished from <a href="http://theconversation.com" target="_blank">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/for-the-first-time-weve-looked-at-every-threatened-bird-in-australia-side-by-side-107432" target="_blank">original article</a>.
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j.ballantyne1990-6AQqhLzZaK

For the first time we’ve looked at every threatened bird in Australia side-by-side

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GUEST OBSERVER
The fourth <a href="https://aussiebirdcount.org.au/" target="_blank">Aussie Backyard Bird Count</a> has just ended, with nearly 2 million birds from 635 species submitted to the BirdLife Australia app. The count, which is in its fourth year, has created a national database of birds found in our backyards.
We don’t know yet exactly how many people participated this year, but more than 60,000 people submitted checklists in 2016. Participants span the whole country, though participation is highest in our urban areas. By surveying our backyards (rather than “good” bird spots), these citizen scientists provide ecologists – like me – with information from urban areas we would not otherwise sample.
This includes data on a range of common bird species that are not frequently analysed because these species are believed to be secure. One of the most surprising results is a decline in the frequency of occurrence of the laughing kookaburra across southeast Australia.
Counting birds
Everyone has a bird story – and fortunately for ecologists, everyone is willing to share them. With 85% of Australia’s population living in cities and towns, birds are an important connection to our natural environment.
<a href="https://images.theconversation.com/files/192541/original/file-20171031-18711-13owlfd.PNG?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/192541/original/file-20171031-18711-13owlfd.PNG?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=237&amp;fit=clip" alt=""></a>
Source: BirdLife Australia
But birds are also <a href="https://www.bioone.org/doi/abs/10.2326/osj.9.3?journalCode=jorn" target="_blank">good environmental indices</a>. They’re generally easy to measure, they respond quickly to environmental change and we know a reasonable amount about the ecology of most species.
Between 1998 and 2014, BirdLife Australia volunteers collected a significant amount of data. This was used to develop a terrestrial bird index in 2015 – a bird “Dow Jones” to track our biodiversity. It was here that the decline in kookaburras was first identified.
The data were drawn from BirdLife Australia’s ongoing atlas project, now called <a href="https://birdata.birdlife.org.au/" target="_blank">Birdata</a>. However, there are biases in this data set, as people obviously like to go birdwatching where they will see more birds. This may inflate the frequency of encountering some species and decrease the chances of encountering others – particularly rare and cryptic species.
For the last four years, we’ve asked volunteers to add to this data by counting birds around their home for a week in October, when many birds are highly active and visible. These counts complement the data already available in Birdata by allowing access to backyards across Australia, which are generally poorly represented in the larger data set.
While there are still limitations in the Backyard Bird Count data, such as the risk of mis-identification, for common species like the laughing kookaburra we can generally be confident that the identification is correct. Even if the same bird is counted multiple times, our models report only a species’ presence or absence, so inflated numbers don’t affect the trend.
Are kookaburras really declining?
The below figures show modelled trends for the kookaburra across metropolitan Melbourne and Sydney. These figures are derived from the volunteer-collected Birdata, much of which comes from green spaces and remnant vegetation in these landscapes.
I wondered whether these declines are true changes in the populations, or reflect a change in the way kookaburras are using the landscape, possibly moving into the matrix of urban backyards that just don’t get surveyed. Looking solely at the backyard count data, I found similar trends in the reporting rates of kookaburras as those in the models, supporting that this decline is at the population level. What started out in 2014 as a way of engaging the broader community with their birds is now collecting useful ecological data.
Further exploration of the ABBC data across other capital cities found some interesting things. In both Perth and Hobart, where the kookaburra is considered an introduced species, the birds are recorded more frequently than in Melbourne and across the ACT. In Perth, increases in 2016 compared to previous years suggest an increase in the species there.
<a href="https://images.theconversation.com/files/192539/original/file-20171031-18700-ecicwi.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/192539/original/file-20171031-18700-ecicwi.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" alt=""></a>
Modelled trends for Kookaburras from 1998-2014. Source: Unpublished models/K. Herman/BirdLife Australia, Author provided
The figure on the left is for Melbourne, and on the right is for Sydney. The reporting rate shows the percentage of surveys where kookaburras were recorded as present. The thick black line is the modelled trend (with confidence intervals in dashed line), the pink line shows the statistically significant linear trend, the thin black line shows the monthly calculated reporting rate, and the green spots show acceleration (or a favourable change) in the trend. Note that due to modelling method, the ends of figures tend to blow out as there is no data from which to predict trend.
While three years does not make a trend, Aussie Backyard Bird Count data from heavily urbanised areas suggest we are seeing a decline in this iconic species in the eastern capitals. Likely reasons for this are the loss of nesting hollows and possibly reductions in the availability of prey as we increasingly modify our urban landscapes. We don’t really know as this is not an area that has been researched.
We need citizen scientists
Collecting enough data (especially from the backyards of towns and cities) to detect these kinds of changes can be an overwhelming task. This is where citizen science programs like the Aussie Backyard Bird Count can help.
As well as helping ecologists track large-scale biodiversity trends, it also gives people the chance to connect with their natural environment and gain a greater appreciation of our unique fauna.
As with all citizen science projects, there are limitations in the data being collected. However, the Backyard Bird app has been designed to make counting as simple and standardised as possible, providing confidence in the tally of common and “iconic” species, and filling in the gaps found in other data sets.
The good old kookaburra is neither rare or cryptic. If anything, if people are seeking out “good” bird habitat to survey we would expect that kookaburras would be one of those species subject to inflated reporting. But this is not what we encountered.
<img src="https://counter.theconversation.com/content/86469/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1">If we are starting to see declines in species that we have traditionally considered secure, what does this mean for those that are already at risk? Once all the data from the Aussie Backyard Bird Count have been collated and vetted we will continue to explore the developing trends in Australia’s urban birds. Increasing engagement and awareness in our communities can help ensure our backyard birds are still around to count next year.
Kerryn Herman is a research ecologist at Deakin University.
This article was originally published on <a href="https://theconversation.com" target="_blank">The Conversation</a>. Read the <a href="https://theconversation.com/citizen-scientists-count-nearly-2-million-birds-and-reveal-a-possible-kookaburra-decline-86469" target="_blank">original article</a>.
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Counting birds sheds new light on our cities: Kerryn Herman

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GUEST OBSERVER
Life in the city can be stressful – for birds just as much as people. For humans, cities are expressly designed to put roofs over heads and food within easy reach, but the opposite can be true for many urban birds. They can find food and shelter harder to come by in the concrete jungle – with some notable exceptions.
For any species in any habitat, survival is about problem-solving and adapting to the environment. So what street smarts do city birds need? And why do some species, such as lorikeets, crows and ravens, seem to dominate our urban landscapes?
In general, urban birds must be bolder than those that remain in natural habitats, as can be seen by the boldness (or “habituation”) with which some species will forage for food with people nearby. But they also need to be able to avoid or retreat from unfamiliar objects or situations if they seem dangerous.
City birds also need to withstand exposure to a wide range of pathogens. A study of birds in Barbados found that urban birds have enhanced immune systems relative to their country counterparts.
While we have changed the environment in which some birds live, reducing resources in terms of food and shelter and increasing the number of pathogens that may impact their health, some birds have largely benefited from the new way of life.
<h2>Winners and losers</h2>
Within the urban ecosystem, there are winners and losers in the bird world. The suburban landscape, for example, now provides more nectar from flowers than native vegetation due to the gardens that people have established. This is a big help to nectar-feeding parrots such as Rainbow Lorikeets.
A recent study in Sydney found that the lorikeets benefit from the increased abundance of flowers in urban areas, and their numbers were higher in the leafy suburbs than in bushland.
But if urban areas are such a rich source of nectar, why are some nectar-feeding species declining?
The Regent Honeyeater feeds mainly on nectar and other plant sugars. It has been seen in orchards and urban gardens, but is listed as critically endangered by the federal government.
This is partly because widespread clearance of woodland habitat has led to the increase of the aggressive Noisy Miner and Red Wattlebird. These species find it easy to “bully” other birds in open habitats. Noisy Miners have been observed pulling apart Regent Honeyeaters' nests as they were being built.
Regent Honeyeaters, in contrast, are less adaptable to changed landscapes, because they are migratory and rely on detailed knowledge of existing food sources. If these resources are changed or removed, they may not have enough interconnected patches of habitat to move safely towards new resources – potentially leaving them vulnerable to cats, foxes and aggression from other birds.
Habitat loss can threaten some bird species or even leave them at risk of dying out if they do not locate alternative resources. The ability to find new food sources therefore becomes a valuable survival skill.
<h2>What’s more useful: flexibility or intelligence?</h2>
For some bird species, flexibility in finding food is crucial in making a successful switch to urban environments. One example is the Grey-crowned Babbler, which is endangered in Victoria, but my colleagues and I have documented it living in a suburban area in Dubbo, New South Wales.
This species usually nests in coniferous woodland and forages in the leaf litter beneath the trees. But in Dubbo, we saw these birds feeding on lawns, in playgrounds and even in leaf litter along a train track at the back of urban housing, sometimes visiting backyards along the way. This suggests that these birds can survive the loss of their woodland habitat by being sufficiently adaptable to life in the suburbs – as long as they can continue to find enough food, disperse between nearby groups and have access to native nesting trees.
For other species, such as crows and ravens, intelligence seems to be the key. These species can survive anywhere in the urban sprawl, including places where trees are scarce but rubbish bins are everywhere. Crows and ravens can literally pull food out of a bin and eat it – clearly a learned behaviour that has resulted from problem-solving.
These birds are highly opportunistic and social, allowing them to learn new ways of adapting to the almost complete removal of their natural environment.
<h2>Survive and thrive</h2>
What we can deduce from these examples is that some birds, like Rainbow Lorikeets and Grey-crowned Babblers, can adapt successfully to the urban sprawl as long as some characteristics of their habitat still remain. Other species, such as crows, have gone a step further and worked out how to survive purely on urban resources – effectively making a living in an environment that is completely unnatural to them.
This suggests that the more we urbanise an area without natural aspects, the less bird diversity we will have – and the more our urban areas will come to be dominated by those few species that are hardy, clever or adaptable enough to thrive.
Luckily, some councils in Australia and cities throughout the world are bringing the natural aspects of the forest back into the concrete jungle, so that a wider range of birds might survive here. More research is needed to work out exactly what each species will need, but planting more native plants is always a good start.
Kathryn Teare Ada Lambert is associate lecturer, University of New England and author for The Conversation. She can be contacted <a href="https://theconversation.com/profiles/kathryn-teare-ada-lambert-186436" target="_blank">here</a>.
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Blocks and flocks: why are some bird species so successful in cities?

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GEUST OBSERVER
Some Australian birds are pushing out other species, and even damaging trees. Noisy and bell miners are two of Australia’s most aggressive bird species. Found throughout eastern Australia, in recent years their numbers have increased at the expense of our smaller birds.
Both myna species are spreading to new areas, largely due to human destruction of habitat. Noisy miners are able to invade areas where habitat has been modified, particularly gardens.
Bell miners, meanwhile, can invade areas that have invasions of weeds in the understorey such as blackberry and lantana that they use for nesting.
The good news is we can help stop the spread of these birds, by putting native plants in our gardens.
<h2>Good birds gone bad</h2>
Both species of these miners (genus Manorina) have been found to reduce bird diversity through their aggressive behaviour, and have been associated with eucalypt dieback.
Human disturbance has been linked to increasing numbers of noisy miners. One study in the box-ironbark forests of southeast Australia, found that noisy miners an move into areas of smaller fragments and unhealthy trees.
They then chase away other birds, reducing the number of species and potentially having knock-on effects on ecosystems. The problem is so serious that noisy miners are listed as a national threatening process.
More research is needed to find out why bell miners are becoming more common. But our research has found that bell miners show similar behaviour to noisy miners. They have a distinctive call that travels for tens of metres through the forest.
Bell miners cause Bell Miner Associated Dieback in trees. It is thought that their feeding and breeding behaviours lead to the death of eucalypts on the east coast of Australia. They also take over habitat that would be used by other birds.
<h2>Are the birds to blame?</h2>
Where miners are normally found in lower numbers, disturbances by people can tip the balance in their favour. This includes increasing noise levels, removing corridors of connecting native vegetation, creating gardens with exotic plants, building cities, houses, parks, logging and introducing invasive species that create thick understories.
These disturbances increase the habitat available for these two species, allowing them to increase in number and drive out the smaller birds that compete for their food sources.
Noisy miners particularly favour open areas that don’t have thickets of shrubs of smaller trees underneath the canopy. Conversely, bell miners prefer thick understoreys, particularly those create by introduced weeds such as lantana.
So if we are causing these birds to increase in number, how can we reduce their numbers and re-create the original habitat where all species could co-exist?
<h2>Build a bird-friendly garden</h2>
You need to create a multi-layered habitat of ground covers, small and medium shrubs, and trees that provide food and shelter locations all year for a variety of species.
These plant species need to have diverse structures, and should be close together to form dense, protective thickets, including climbers within medium-to-tall shrubs and trees, nectar-bearing and seed-bearing plants. Mulch can also encourage insect life for insectivorous birds.
Plants should also be local species that grow naturally in the area and are suited to the climate. Native birds that live in the area will then visit your garden as another food source in their territory.
Reducing weeds in your garden and neighbouring bushland (many weeds are derived from garden plants) can help native species. General natives can also be planted if you can’t find local natives in your local nursery.
Even in gardens where noisy miners dominate, smaller birds can survive in a dense understorey.
Meanwhile, a thin midstorey with fewer leaves may help to reduce bell miner abundance, as suggested by our recent study near Kyogle, New South Wales.
You should also consider the timing of flower and fruit production, to ensure that there is always food available for birds. You should also remove fruiting plants such as cotoneaster and blackberry that attract predators such as currawongs, to help reduce predation on smaller bird species.
Using chemical-free weed and pest control and mulching garden waste can also increase the food available for birds.
Lawns can also be replaced with native grasses that produce seed to attract finches and other seed-eaters such as crimson rosellas. Birds also need fresh water, which you can provide with a pond or bird bath. This should be placed within vegetation to ensure birds feel safe from predators.
<h2>Why are native gardens important?</h2>
Local biodiversity can be maintained by native gardens, ensuring long-term ecological sustainability. Small birds and other wildlife benefit from planting native species.
Many species are negatively affected by the current structure of gardens such as lawns, few scattered trees and the placement of concrete and houses without any access to nesting habitat.
Gardening in Australia needs to be changed to favour more native species and provide structure on a landscape scale that includes a variety of gardens.
 
Kathryn Teare Ada Lambert is research associate, University of New England and author for The Conversation. She can be contacted <a href="https://theconversation.com/profiles/kathryn-teare-ada-lambert-186436" target="_blank">here</a>.
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