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Ring-billed Gull
Contour or primary flight feather

Ring-billed Gull

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Charadriiformes, Family: Laridae, Genus: Larus, Species: L. delawarensis

Family: Laridae (Gulls, Terns, and Skimmers)

Shape
Symmetrical vane, rounded tip, elongated outline
Size
Approximately 6 inches long, consistent with medium-sized gull flight or body feathers
Rarity
Very Common
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Description

The Ring-billed Gull is a medium-sized gull recognized by its pale gray back, white underparts, black wingtips with white spots, and a distinct black ring around its yellow bill. They are highly adaptable and often seen soaring gracefully or congregating in large flocks.

Colour & Pattern

Off-white to pale gray base coloration with slight brownish-yellow staining at the tips due to wear and exposure

Barb Structure

Pennaceous vane with plumulaceous base, barbs intact with minor fraying

Texture & Surface

Smooth and firm along the pennaceous section, soft and downy at the base, matte finish

Key Features

Pale off-white to light gray coloration, flexible white rachis, and moderate size typical of medium gulls

Habitat

Coasts, lakes, rivers, agricultural fields, and urban areas such as parking lots and landfills

Geographic Range

Widespread across North America, breeding near northern lakes and rivers, wintering along coasts and southern inland waters

Ecological Role

Acts as an opportunistic scavenger and predator helping to control insect and rodent populations while cleaning up organic waste

Similar Species

Herring Gull and California Gull, which are generally larger and possess slightly different tonal shades in their gray plumage

Interesting Facts

Ring-billed Gulls are notoriously resourceful and have adapted brilliantly to human presence, often utilizing fast-food parking lots as primary foraging grounds

Condition Notes

Fair condition, showing minor fraying at the tips and light yellowish discoloration from weathering and dirt

Ring-billed Gull | Feather Identifier