The noisy miners (at least 6) were not at all happy to see a possum appear at the entrance to this hollow. When the possum went back in, the birds lost interest. This hollow has previously been used by gang gangs.
@MichaelMulvaney. This is the hollow prepared by the Baldys last year (hollow 2), but then abandoned by them and visited by another pair. A pair has also been visiting it this year, but without great enthusiasm. This might explain why.