Cockatoos share many features with other parrots including the characteristic
curved beak shape and a zygodactyl foot, with two forward toes and two backwards toes.
Not exact matches
The
beak is the next thing to
shape and long
curved ones need to be steamed and bent.
The specimen studied by Longrich was too incomplete to identify the exact species accurately, but showed a strange twist to the jaw, causing the teeth to
curve downward and outwards in a
beak shape.
These include shifts in the proportions of its skull and the
shape of its upper jawbone, which over time began to
curve pronouncedly downward and presumably developed on its exterior a
beak.
They noticed the
curve of a bird's lower
beak, a new green leaf uncurling, and the hiss of a cobra — and emulated those
shapes and sounds in a practice called sitali (the cooling breath).