Ring-billed Gull

This is a primary flight feather from a Ring-billed Gull, a medium-sized gull with a distinctive black ring around its yellow bill. Mature birds have clean white heads and underparts with light grey backs. In flight, they are agile and buoyant, often seen scavenging along shorelines or following plows in fields.

Predominantly slaty black to brownish-black on the distal (top) half, fading into a pearly grey toward the base; the very tip typically lacks the white 'mirror' seen in inner primaries, or it has been worn away. The inner vane shows a lighter greyish-brown underside.

Tightly interlocked pennaceous barbs designed for aerodynamic integrity; the barbules are strong and hook together firmly to create a windproof surface; minor plumulaceous (fluffy) barbs are present only at the very base near the calamus.

Very stiff and smooth; the surface is somewhat glossy and water-repellent due to preen oils; the leading edge is extremely rigid to withstand air pressure.

Extreme asymmetry of the vanes, dark blackish distal pigmentation transitioning to pearl grey, and a robust, dark rachis at the tip.

Coastal beaches, lakeshores (highly common on Lake Erie), rivers, estuaries, and increasingly in inland parking lots and agricultural fields.

Common across North America; breeds near freshwater in the northern US and Canada; winters southward to the Gulf Coast and Mexico. High concentrations are found year-round in the Great Lakes region.

Generalist scavengers and predators; they play a vital role in cleaning up organic debris along shorelines but can also impact populations of smaller waterbirds through nest predation.

Herring Gull (Larus argentatus) feathers are very similar but significantly larger and usually show more pronounced white 'mirrors' at the tips. California Gull feathers are also similar but have different grey-tone depths.

Ring-billed Gulls are highly social and have successfully adapted to human environments, often returning to the same nesting colony year after year. They are known for 'kleptoparasitism'—stealing food from other birds.

Good to Fair; there is some significant fraying and separation of the barbs along the trailing edge, suggesting this was a molted feather that has spent some time exposed to the elements or sand abrasion.

Found on Lake Erie Ohio beach