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At its 2013 peak, this was the largest double-crested cormorant colony in North America, with some 30,000 birds, more than 40% of the species’ population in the western U.S., according to the Corps.
The double-crested cormorant (Nannopterum auritum) is a member of the cormorant family of water birds. It is found near rivers and lakes and in coastal areas and is widely distributed across North America, from the Aleutian Islands in Alaska down to Florida and Mexico. Measuring 70–90 cm (28–35 in) in length, it is entirely black except for ...
Cormorants’ effect on the aquaculture industry is significant, with a dense flock capable of consuming a harvest. Cormorants are estimated to cost the catfish industry in Mississippi alone between $10 million and $25 million annually. [3] The double-crested cormorant is the only species appreciably found inland in the United States. [3]
This name was coined for the flightless cormorant, which does indeed have small wings. Genetic studies have found that the neotropic and double-crested cormorants form a clade with the flightless cormorant, and they are thus placed together in the genus Nannopterum despite both species having normal-sized wings and full flight capabilities. [4]
Double-crested cormorant. Birds portal; Animals portal; Cormorant culling is the intentional killing of cormorants by humans for the purposes of wildlife management. It has been practiced for centuries, with supporters of culling generally arising from the angling community. Culling techniques may involve the killing of birds, the destruction ...
Reed cormorant; Little pied cormorant; Little cormorant; Pygmy cormorant; European shag; Imperial shag; Double-crested cormorant; Neotropic cormorant; Japanese cormorant; Great cormorant; Black-faced cormorant; Indian cormorant; Rock shag; Pelagic cormorant; Brandt's cormorant; Spotted shag; Little black cormorant; Red-faced cormorant ...
The notes such as "Azores only" and the notes of population status such as "endangered" are from Bird Checklists of the World. [2] [3] [4] ... Double-crested cormorant:
Cormorants are medium-to-large aquatic birds, usually with mainly dark plumage and areas of colored skin on the face. The bill is long, thin, and sharply hooked. Their feet are four-toed and webbed. Three species have been recorded in Ohio. Great cormorant, Phalacrocorax carbo (R) Double-crested cormorant, Nannopterum auritum (B)