Cacatua tenuirostris
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~10%
The long-billed corella, also known as long-billed cockatoo or slender-billed corella (Cacatua tenuirostris), is a cockatoo native to Australia, which is similar in appearance to the little corella. This species is mostly white, with a reddish-pink face and forehead, and has a long, pale beak, which is used to dig for roots and seeds. It has reddish-pink feathers on the breast and belly.
The long-billed corella does not have any recognized subspecies. The first formal written description was by German naturalist Heinrich Kuhl in 1820. It is one of several related species of cockatoos called corellas and classified in the subgenus Licmetis within the genus Cacatua, members of which are known as "white cockatoos".
The adult long-billed corella measures from 38 to 41 cm in length, has a wingspan around 80–90 cm, and averages 567 g in weight. It has a long, bone-coloured beak, and a rim of featherless, bluish skin around the eyes. The plumage is predominantly white with reddish feathers around the eyes and lores. The underside of the wings and tail feathers are tinged with yellow.
The long-billed corella can be found in the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Grampians National Park | 🇦🇺 Australia | |
| 2 | Great Otway National Park | 🇦🇺 Australia | |
| 3 | Royal National Park | 🇦🇺 Australia | |
| 4 | Blue Mountains National Park | 🇦🇺 Australia | |
| 5 | Hattah-Kulkyne National Park | 🇦🇺 Australia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Parc des oiseaux | 🇫🇷 France | |
| 2 | Healesville Sanctuary | 🇦🇺 Australia | |
| 3 | Indianapolis Zoo | 🇺🇸 United States | |
| 4 | Lisbon Zoo | 🇵🇹 Portugal | |
| 5 | Fresno Chaffee Zoo | 🇺🇸 United States | |
| 6 | East Coast Natureworld | 🇦🇺 Australia | |
| 7 | Paphos Zoo | 🇨🇾 Cyprus | |
| 8 | Australian Reptile Park | 🇦🇺 Australia | |
| 9 | Jardin zoologique tropical | 🇫🇷 France | |
| 10 | Billabong Koala and Wildlife Park | 🇦🇺 Australia | |
| 11 | Koala Park Sanctuary | 🇦🇺 Australia | |
| 12 | Tralaga Wildlife park | 🇦🇺 Australia | |
| 13 | Bioparc Genève | 🇨🇭 Switzerland | |
| 14 | Bonorong Wildlife Sanctuary | 🇦🇺 Australia | |
| 15 | Bird Kingdom | 🇨🇦 Canada | |
| 16 | Caversham Wildlife Park | 🇦🇺 Australia | |
| 17 | Ranger Red’s Zoo & Conservation Park | 🇦🇺 Australia |
Rare
Under 5% of wildlife watchers report a Long-billed Corella sighting in Royal National Park on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 116th most-seen of the 178 birds we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Long-billed Corella in Royal National Park on a given day, so our monthly data shows no clear season.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Long-billed Corella sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 5
Of the 5 parks where we can rate Long-billed Corella sightings, Royal National Park ranks 3rd at under 5%. The best odds are in Grampians National Park (Australia, about 50%) and Great Otway National Park (Australia, under 5%).
Same genus: Cacatua
The closest relatives of the Long-billed Corella that you can see in Royal National Park (genus Cacatua, White Cockatoos and Corellas) are Sulphur-crested Cockatoo (about 80%) and Little Corella (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Long-billed Corella is recorded against all the birds logged in Royal National Park (57 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
