Ring-billed Gull
Larus delawarensis
Synopsis:
Breeds in the vicinity of Harney and Malheur Lakes, along the
Columbia River, and probably in the Klamath Basin.
The records from western and central Oregon, and Wallowa and Malheur
Counties, are notable but may represent widely foraging
breeders or wandering non-breeders.
Habitat Associations:
strongest
Lake/Pond Shoreline & Islands (411378 acres)
strong
Edges of Freshwater Marsh (15483 acres)
some
Edges of Cropland/Pasture/Orchard (1786379 acres)
Relative Detectability:
Easy to spot, but nesting is mostly at difficult-to-access
locations.
Challenge:
Attempt to confirm breeding of birds away from major rivers.