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Ring-billed Gull (Common Gull, Sea Gull)
Contour feather or secondary covert

Ring-billed Gull (Common Gull, Sea Gull)

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

AI-generated identification · may be incorrect

Family: Laridae (Gulls, Terns, and Skimmers)

Shape
Symmetrical vane with a rounded tip and slightly wavy, tapering outline
Size
Approximately 3 to 4 inches long, consistent with a medium-sized gull body or covert feather
Learn more about Ring-billed Gull (Common Gull, Sea Gull) in the encyclopedia →

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Description

A clean white feather belonging to the Ring-billed Gull, a highly adaptable and ubiquitous medium-sized gull known for its yellowish legs, black ringed bill, and bright white plumage mixed with soft gray wings

Colour & Pattern

Solid white overall with a clean, unblemished appearance, characteristic of adult gull plumage

Barb Structure

Pennaceous at the upper tip transitioning to slightly plumulaceous or frayed barbs near the base, intact rachis, showing some wear along the edges

Rachis & Barb Pattern

Central rachis is thin, white, slightly flexible, and curves gently. Barbs are fine, dense, and uniform along the upper half

Texture & Surface

Soft yet resilient, smooth texture with a matte white finish

Feather Placement

Body contour feather or wing covert, likely from the breast or mantle region based on size and structure

Key Features

Pure white coloration throughout, soft flexible texture, and medium length typical of a gull body or covert feather

Habitat

Coasts, lakes, rivers, agricultural fields, parking lots, and urban landfills

Geographic Range

Widespread across North America, breeding in the northern US and Canada, and wintering south to the Gulf of Mexico, Central America, and the Caribbean

Ecological Role

Acts as an opportunistic scavenger and predator, helping to clean up organic waste while serving as an important part of aquatic and urban food webs

Similar Species

Herring Gull and Bonaparte's Gull, which share similar white body plumage but vary slightly in size and exact feather dimensions

Interesting Facts

Ring-billed gulls are notorious urban foragers and can often be found congregating in large numbers in shopping mall parking lots far from natural bodies of water

Cultural Significance

Gull feathers have historically had minimal commercial use compared to waterfowl plumes, though indigenous peoples occasionally used gull feathers in decorative or ceremonial regalia

Field Identification Tips

Look near coastal areas, lakeshores, or large parking lots where gulls congregate, especially during spring and summer molting seasons

Condition Notes

Good condition with minor fraying at the edges and slight dirt accumulation near the base of the calamus