They have two wing bars and a dark bill with yellow at the base of the lower mandible.

The lower mandible is black, and the legs are green.

The bill is black, but at least the base of the lower mandible is pale.

There is no bare skin at the base of the lower mandible.

The bill is dark with a pink lower mandible.

The dark bill has a slaty base to the lower mandible.

The bill is yellow with a red spot on the lower mandible.

Their bill is yellow with a dark spot on the tip of the lower mandible.

Her chin and mouth came where a lower mandible would have been.

The large bill is black with a pale yellow base to the lower mandible.