Ring-billed Gull

The Ring-billed Gull is a familiar medium-sized white and grey gull with yellowish legs, a sharp yellow bill marked with a distinct black ring, and dramatic black-and-white wingtips. Highly adaptable and intelligent, they are a common sight soaring gracefully along coastlines and scavenging in urban areas.

Distinctive white tip followed by a bold black subterminal band, transitioning to a soft grey-blue and pure white base, featuring melanin-based pigmentation

Tightly interlocked pennaceous structure on the upper vane, transitioning to plumulaceous (fluffy downy) barbs near the base of the calamus

Smooth, firm, and moderately glossy on the pennaceous vane, with a soft, fluffy texture at the base

White feather tip followed by a clean black band and contrasting grey-blue vane, diagnostic of adult gull wingtip primaries

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

Widespread across North America, breeding near northern lakes and wetlands, and wintering along southern coasts, the Great Lakes, and Central America

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

Herring Gull and California Gull, which share similar gray and black wingtip patterns but are typically larger in size

Ring-billed Gulls often steal food from other birds through kleptoparasitism and are well known for following tractors in fields to feed on exposed insects and worms

Good condition with minor wear at the extreme tip, intact barbs, and clean structure indicating a healthy recently molted adult feather