Feather & Bird Encyclopedia
Search and identify feathers by species — with feather type, plumage, colours, size, habitat, and how to tell them apart in the field.

Herring Gull
A familiar large gull of the Old World, the Herring Gull shows pale gray mantle feathers, black-and-white patterned wingtips, and pink legs, taking several years to reach its fully patterned adult plumage.
seabird
American Herring Gull
The North American counterpart to the Eurasian Herring Gull, the American Herring Gull shows very similar pale gray-and-white plumage with black wingtip spots, but with subtly darker gray tones and pinkish legs.
seabird
Common Gull
A neat, medium-sized gull of Europe and Asia known as Mew Gull in North American populations, the Common Gull shows pale gray back feathers, black wingtips with white spots, and a gentle, rounded head shape.
seabird
Franklin's Gull
A small, elegant gull of interior prairie wetlands, known for its bold white eye crescents, black hood, and one of the longest migrations of any gull, wintering as far south as the coasts of South America.
seabird
Yellow-legged Gull
A large, robust gull of Mediterranean and western European coasts, closely resembling other large white-headed gulls but distinguished by bright yellow legs and a somewhat darker mantle.
seabird
Gull-billed Tern
A stocky, pale tern known for its short, thick, gull-like black bill rather than the slender dagger bill typical of most terns.
seabird
Lesser Black-backed Gull
A medium-large gull of European waters with dark slate-gray to blackish mantle feathers and yellow legs, the Lesser Black-backed Gull has expanded its range widely and increasingly turns up well inland.
seabird
Little Gull
The smallest gull in the world, a delicate Eurasian species with rounded wings, a buoyant tern-like flight, and strikingly dark underwings that flash as it wheels over the water.
seabird
Bonaparte's Gull
A dainty, tern-like gull of the North American boreal forest, notable as one of the few gulls that nests in trees, and identifiable by its crisp black hood and bright white wing wedge.
seabird
Great Black-backed Gull
The world's largest gull, the Great Black-backed Gull shows strikingly dark slate-black mantle feathers contrasting with a pure white head and body, and is a powerful predator as well as scavenger along North Atlantic coasts.
seabird
Great Skua
A powerfully built, gull-sized seabird cloaked in dark brown plumage flecked with rufous and buff, best known for its bold white wing-flash and aggressive, piratical habits.
seabird
Eurasian Scops Owl
The Eurasian Scops Owl is a small, migratory owl of southern Europe and parts of Asia, known for its cryptic bark-patterned plumage and a monotonous, far-carrying whistled call.
owl
Black-legged Kittiwake
A truly pelagic gull that spends most of its life far out at sea, recognized by its clean gray-and-white plumage, black legs, and wingtips that look as though they were dipped in black ink.
seabird