4 Gang-gang Cockatoo at Cook, ACT
Identification history
| Callocephalon fimbriatum | 3 Dec 2025 | MichaelMulvaney | ||
| Callocephalon fimbriatum | 2 Dec 2025 | Rheardy |
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User's notes
Gang Gangs regularly work on creating hollows by chewing bark off around the base of branches in this Brittle Gum. Some branches have fallen off as a result. I guess that over time the exposed wood rots, making it easier to excavate. Given the shortage of suitable nesting hollows, this might not be happening fast enough!
5 comments
Rheardy
wrote:
3 Dec 2025
I don't think so. There was a hollow developing on the top side of a branch but the branch fell off.
MichaelMulvaney
wrote:
3 Dec 2025
Thanks - we have been checking yours and other hollow activity sightings from the Cook area - but so far no confirmed nests - though so far this year we have 22 from Canberra and 3 from Queanbeyan - Thanks again for your help - basically for every ten hollow sightings we follow up on we find a nest.
Rheardy
wrote:
3 Dec 2025
It is interesting that they seem quite serious for a while but then don't go on with it. Not sure if this year has been any different with the continuing colder temps.
MichaelMulvaney
wrote:
3 Dec 2025
We do have some pairs behaving strangely this year, seemingly going through the motions and not yet nesting - but then we have others who already have chicks (incubation is 4 weeks) that started nesting in late October. Gang-gangs seem to delight is disproving any theories that I come up with to explain their behaviour so I'm pretty clueless to explain what is happening in Cook.
Location information
- Places Cook, ACT
Sighting information
- 4 - 15 Abundance
- Rheardy Recorded by
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Collections
Rheardy NatureMapr Canberra & Southern Tablelands Callocephalon fimbriatum ACT Most Wanted! Birds To Look Out For Wingecarribee's Rare Animals Queanbeyan-Palerang Animals To Watch! NSW Government Priority Species ACT threatened species Parrots Birds
Species information
- Callocephalon fimbriatum Scientific name
- Gang-gang Cockatoo Common name
- Sensitive
- Endangered *
- Non-invasive or negligible
- Up to 5980m Recorded at altitude
- External link More information
Record quality
- Images or audio
- More than one media file
- Verified by an expert moderator
- Nearby sighting(s) of same species
- GPS evidence of location
- Description
- Additional attributes