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.
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
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
Black-headed Gull
A small, gregarious Old World gull whose chocolate-brown (not black) hood and white leading-edge wing wedge make it easy to pick out from mixed flocks.
seabird
Silver Gull
A common and adaptable Australian gull with white plumage, pale grey wings, and black wingtips marked with white spots.
seabird
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
Ivory Gull
A pure white, high Arctic gull closely tied to pack ice, whose all-white adult plumage and short black legs make it unmistakable among northern seabirds.
seabird
California Gull
A medium-large gull of the American West, the California Gull shows medium gray back feathers and dark eyes, and is notable historically for its role in protecting early Utah crops from insect swarms.
seabird
Western Gull
A heavily built, dark-backed gull of the Pacific coast, the Western Gull shows dark slate-gray mantle feathers and a notably powerful, thick bill, rarely wandering far from saltwater.
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
Sabine's Gull
A strikingly patterned Arctic-breeding gull whose bold black, white, and gray tricolored wing pattern and forked tail make it one of the most distinctive gulls in flight.
seabird
Glaucous Gull
A massive, pale Arctic gull, the Glaucous Gull is unusual among large gulls for lacking black wingtips entirely, showing instead uniformly pale gray and white feathers well suited to its icy northern range.
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
Glaucous-winged Gull
A common gull of the North Pacific coast, the Glaucous-winged Gull shows pale gray wingtip feathers with little or no black, differing subtly from most other large gulls, and frequently hybridizes with related species.
seabird
Iceland Gull
A pale, gentle-faced gull of the North Atlantic Arctic, the Iceland Gull shows pale gray back feathers and white to very pale wingtips, smaller and more delicately built than the similar Glaucous Gull.
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
Ring-billed Gull
A common, adaptable medium-sized gull of North America named for the black band around its bill, the Ring-billed Gull shows pale gray back feathers and yellow legs, thriving in habitats from lakeshores to parking lots.
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
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
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
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
Great Knot
The largest of the knots, this East Asian-Australasian Flyway specialist shows a densely spotted blackish breast in breeding plumage and a notably longer, heavier bill than its close relative the Red Knot.
shorebird
Great Hornbill
The Great Hornbill is one of the largest Asian hornbills, marked by bold black-and-white plumage and topped with a massive yellow-and-black casque. It flies with loud, whooshing wingbeats between fruiting trees in dense evergreen forest.
other
Great-tailed Grackle
The Great-tailed Grackle is a large, adaptable blackbird known for the male's exceptionally long, keeled tail and glossy iridescent plumage, now common across much of the southern and central United States and beyond.
songbird