So I know that this is a sulphur crested cockatoo but I'm a bit confused about the difference in it's crest and eye area. The crest looked quite orange and also a bit shorter than the others and the area surrounding the eyes also appeared different to the others as you can see in the second picture.
I didn't have much luck finding a definitive answer for this via google so, is this likely a genetic variation of some sort? Or a hybrid? I know nothing about hybrid cockatoos.
Single Tawny sitting in same tree as last time, no infant bird to be seen .
Pound Bend, Warrandyte State Park.