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.
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
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
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
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
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
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
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
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
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
Heermann's Gull
A distinctively dark-bodied Pacific coast gull with a bright red bill, most easily recognized outside the nesting season by its uniform sooty-gray plumage contrasting with a white head.
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
Black-winged Kite
The Old World counterpart of the White-tailed Kite, a small pale gray-and-white raptor with a black shoulder patch and striking red eyes.
raptor
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
Golden-winged Warbler
A striking blue-gray warbler with a bright yellow crown and wing patch, set off by a bold black throat and facial mask in adult males, known for hybridizing with the Blue-winged Warbler.
songbird
Blue-winged Warbler
A bright yellow-headed warbler with blue-gray wings marked by two white wing bars and a thin black line through the eye, closely related to and often hybridizing with the Golden-winged Warbler.
songbird
Yellow-winged Cacique
A glossy black songbird of Mexico's Pacific slope, distinguished by a shaggy crest and a bold yellow patch on the wing, and known for its noisy colonial nesting behavior.
songbird
White-winged Dove
A brown-gray desert dove readily identified by a bold white stripe along the edge of the folded wing, visible both perched and in flight.
dove pigeon
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
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
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
Silver Gull
A common and adaptable Australian gull with white plumage, pale grey wings, and black wingtips marked with white spots.
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
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