Less well known was his interest in bird hybrids and colour aberrations, as well as the phenomenon of 'sex reversal', for all of which he collected an impressive number of examples. Unfortunately, ...

“This is a hybrid — a cross between a sulphur-crested cockatoo and a galah. I have seen these two to three times over the years, but always as aviary birds that paired and bred together,” he ...

Many Aussies in the comments were stunned by the photos, with some hoping that they’d get a chance to have their own glimpse of the bird in the wild.