Bird Plumage Variations and Abnormalities

Male Painted Bunting in his spectacular plumage : Tim Hopwood Variations in plumage can be based on the sex of the bird, its age, or seasonal changes caused by molting. Molting patterns are complex and even the experts do not have all the answers about how this process is controlled. This basic

Unusual Birds - FeederWatch Melanism, Melanistic animals, Melanistic

Neossoptile plumage, bird anatomy

Leucistic plumage as a result of progressive greying in a cryptic nocturnal bird

The variation of appearances of our seabirds

Mya Bird Academy • The Cornell LabBird Academy • The Cornell Lab

Bird Plumage Variations and Abnormalities

Surprising Animal Color Abnormalities

We defined a complex plumage pigmentation pattern as a combination of

Unusual Birds - FeederWatch

Frontiers Avian Pigment Pattern Formation: Developmental Control of Macro- (Across the Body) and Micro- (Within a Feather) Level of Pigment Patterns