"I can practically see the muscles rippling under that bright plumage."

It's always the male bird who has the bright plumage.

It can be instantly recognized by its bright plumage.

Men in bright plumage performed the repetitive rituals of ball and club.

The bright plumage of birds flashed among the trees.

Thus, males who have a high quality diet will have brighter red plumage.

One of them, a woman with bright orange plumage, turned her head and pointed at him.

This evidence supports the idea that bright plumage is an "honest" signal involved in mating.

Most species have bright plumage with little differences between the sexes.

The bird's bright plumage makes it easy for predators to find this species.