
Glaucous-winged Gull (and hybrid Gulls typical of Seattle, often 'Olympic Gull')
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Charadriiformes, Family: Laridae, Genus: Larus, Species: Larus glaucescens
Family: Laridae (Gulls, Terns, and Skimmers)
- Shape
- Slightly asymmetrical, broad blade with a gently rounded tip, broad inner vane and narrower leading outer vane
- Size
- Approximately 18 to 22 cm (7 to 8.5 inches) long and 4 to 5 cm wide, typical for large gull outer/middle secondaries
- Rarity
- Very Common (Extremely abundant in the Seattle region year-round)
Found a feather like this?
Identify any feather from a photo, free.
Description
This specimen is a secondary flight feather from a large Larus gull, most likely a Glaucous-winged Gull or its common hybrid with the Western Gull (known as the 'Olympic Gull'). These large gulls dominate the Pacific Northwest cityscape and coastline, possessing soft gray mantles, white heads and bodies, and heavy yellow bills.
Colour & Pattern
Uniform soft pale pearl-gray to brownish-gray tone across the upper vane surface with a whitish base and clean light underside; lacks contrasty black tipping seen in eastern gulls
Barb Structure
Tightly interlocked pennaceous structure across most of the vane with short plumulaceous barbs at the very base of the calamus
Texture & Surface
Smooth, firm, and water-repellent surface typical of aquatic birds; matte to slight satin sheen
Key Features
Uniform mid-gray coloration without stark dark black bands or spots, broad secondary flight shape, thick cream-colored shaft, smooth dense vane
Habitat
Coastal marine environments, harbors, beaches, estuaries, rivers, agricultural fields, and heavily urbanized areas like parking lots, dumpsters, and outdoor restaurant outdoor seating
Geographic Range
Pacific Coast of North America, from western Alaska down through the Pacific Northwest (including Puget Sound) to central California in winter
Ecological Role
Key coastal generalist and opportunistic predator/scavenger, helping clean aquatic and terrestrial waste while controlling populations of invertebrates and small fish.
Similar Species
Western Gull (darker slate-gray mantle and feathers), Herring Gull (has dark blackish primary tips), California Gull (smaller size, darker gray mantle)
Interesting Facts
In the Seattle area, Glaucous-winged Gulls hybridize so extensively with Western Gulls that true genetically pure individuals are quite rare; ornithologists playfully call the ubiquitous local population 'Olympic Gulls'. They are famous opportunistic scavengers.
Condition Notes
Good condition. Shows slight edge wear near the distal tip and minor separation of the trailing barbs, typical of a naturally molted feather found outdoors
Notes
Found in Seattle by two cars and a restaurant