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Ring-billed Gull
Contour feather (body or upper covert)

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 with a broadly rounded tip and a soft, downy base
Size
Approximately 4 to 5 inches in length, consistent with a large body or scapular contour feather
Rarity
Very Common
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Description

The Ring-billed Gull is a medium-sized, familiar gull with a clean white body, pale gray back, black-tipped wings with white spots, and a distinctive dark ring around its yellow bill. This particular contour feather exhibits the typical soft grey and white tones of the body plumage with a warm brownish tip characteristic of non-breeding or juvenile coloration, or sun-bleached older wear.

Colour & Pattern

Pale greyish-white base with a distinct warm brownish-tan or buff tip, showing signs of sun bleaching and wear

Barb Structure

Pennaceous at the upper distal portion with tightly interlocked barbules, transitioning sharply into a fluffy plumulaceous (downy) structure at the base

Texture & Surface

Smooth and firm at the upper vane tip, transitioning to soft and fluffy at the base where the plumulaceous barbs are unhooked

Key Features

Soft greyish body feather with a distinct rounded tip, pale rachis, and a fluffy downy base typical of large gulls

Habitat

Found near coastships, lakes, rivers, agricultural fields, and urban areas such as parking lots and landfills

Geographic Range

Widespread across North America, breeding in the northern US and Canada, and wintering along southern coasts, Central America, and the Caribbean

Ecological Role

Acts as an important scavenger and opportunistic predator in aquatic and terrestrial ecosystems, helping clean up organic waste

Similar Species

Herring Gull and California Gull, though feathers from larger gulls are generally larger and darker gray

Interesting Facts

Ring-billed Gulls are highly adaptable generalist feeders and are frequently seen scavenging in fast-food parking lots, earning them the nickname 'fast-food gulls'

Condition Notes

Good condition overall with minor fraying at the tip and some weathering/discoloration

Ring-billed Gull | Feather Identifier