The brightly plumaged bird preened its wings at dawn.

Ornithologists compared the vibrant plumages of island species to trace their evolutionary relationships.

The peacock's iridescent plumage shimmered in the morning sun, drawing amazed gasps from the tourists.

After the autumn moult, the young gull's basic plumage made it difficult to distinguish it from adult birds.

During the spring migration, males of the species display their alternate plumage to attract mates.