Callocephalon fimbriatum
4 Gang-gang Cockatoo at Cook, ACT
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| Callocephalon fimbriatum | MichaelMulvaney | 3 Dec 2025 | |
| Callocephalon fimbriatum | Rheardy | 2 Dec 2025 |
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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
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.
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.
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.
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
Collections
- Rheardy NatureMapr Canberra & Southern Tablelands ACT Most Wanted! ACT threatened species! Callocephalon fimbriatum 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
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Synonyms
Callocephalon fimbriatum
Seasonal activity
-
Nesting site
JFMAMJJASOND
Record quality
Quality score
5 / 7
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