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In the East, except in the Northeast in winter and along the Gulf Coast, the Double-crested is the only cormorant likely to be seen. In the West, it is the only cormorant that nests commonly in the interior. Along the Pacific coast, where it nests on cliffs, it is usually outnumbered by Brandt's Cormorant. It takes some practice to pick out the crook in the neck of a Double-crested, but once this field mark is spotted, distinguishing the two is easy. Double-crested Cormorants often take shortcuts over land, whereas both Brandt's and the smaller Pelagic nearly always fly over water. Despite years of persecution by fishermen who viewed it as a competitor, the species is currently increasing in number and expanding its range. Like geese, cormorants migrate in large arcs or in wedge-shaped flocks, but are silent when flying. The word "cormorant" is derived, through French, from the Latin corvus marinus, or "sea crow."

Las aves son una prueba viviente de que los productos químicos permanentes contaminan nuestros suministros de agua

Double-crested Cormorant

Hemispheric weekly distribution data from eBird at the Cornell Lab. Seasonal ranges derived from eBird and data from BirdLife International and Audubon. Learn more

Species Migrations

Hemispheric weekly distribution data from eBird at the Cornell Lab. Seasonal ranges derived from eBird and data from BirdLife International and Audubon.