The Bill of an Eider
“Somateri mollissima. Somateri dresseri. Common Eider. Bill gibbous at base of upper mandible; outline of culmen variously curved; with long, acute or clubbed, tumid process extending in line with culmen variously curved; with long, acute or clubbed tumid process extending in line with culmen on each side of forehead, divided by extension of feathers on culmen. feathers of side of bill advancing to about under nostrils, far beyond those on culmen. No speculum. Male no black marks on chin. (mollissima - Frontal processes short, narrow, acute, parallel. Smaller.). (dresseri - Frontal processes long, broad, clubbed, divergent. Larger.).” Elliot Coues, 1884
Keywords
birds, ducks, ornithology, bird anatomy, eider, duck bill, sea-duck, duck beak, North American birds, external parts of birds, Somateri mollissima, Somateri dresseri, duck nostrilsGalleries
Bird AnatomySource
Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
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