Double-crested Cormorant
“Phalacrocorax dilophus. Double-crested Cormorant. Tail of 12 feathers. Gular sac convex behind. No colored gorget. Glossy greenish-black; feathers of the back and wings coppery-gray, black-shafted, black-edged. Adult with curly black lateral crests in the breeding season, but few if any other filamentous white ones, over the eyes and along the sides of the neck; white flank-patch not observed in any specimens examined, probable not occurring; iris green; gular sac and lores orange. Winter spec. with bill bright yellow, blackening along culmen, gular sac red anteriorly, ochrey-yellow posteriorly; legs dull black.” Elliot Coues, 1884
Keywords
migratory birds, birds, water birds, ornithology, double-crested cormorant, seabirds, North American birds, aquatic feeder, surface diving birds, Phalacrocorax dilophusGalleries
Birds: CSource
Elliot Coues Key to North American Birds (Boston, MA: Estes and Lauriat, 1884)
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