Glaucous-winged Gull (also known commonly as Western Gull hybrid or Pacific Northwest Gull)

A soft, all-white body feather belonging to a large gull species common along the Pacific Northwest waterfront. Gulls are opportunistic, highly adaptable seabirds with robust bodies, webbed feet, and strong hooked bills.

Pure uniform white across the entire feather, lacking any spots, barring, or melanin pigmentation

Transitioning from pennaceous at the upper tip to plumulaceous (fluffy and loose without strong hooklets) near the base, typical of insulative body feathers

Soft, silky, and downy to the touch with a matte finish and high flexibility

Pure white coloration combined with a soft, semiplume-like structure and small-to-moderate size typical of gull underparts

Marine coastal environments, beaches, rocky shores, harbours, estuaries, and urban waterfront areas

Pacific coast of North America from Alaska down to northwestern Mexico, year-round resident along the Pacific Northwest waterfront

Act as important marine scavengers and top coastal predators, helping maintain marine ecosystem health by consuming carrion and organic waste

Other gulls such as the Western Gull or Mew Gull, which share similar white body plumage and coastal habitats

Glaucous-winged Gulls frequently hybridize with Western Gulls in the Pacific Northwest, producing offspring with variable gray-and-white mantle shades

Fair condition with some slight fraying at the base and minor wear along the barbules, typical of a naturally molted feather found outdoors

Found in West Seattle near the waterfront