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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 ...
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.
Brandt's cormorant: C C C C Double-crested cormorant: F U C C Pelagic cormorant: F F F F American bittern - - U U Great blue heron: F F F F Great egret: U - F F Snowy egret: U - F F Cattle egret - - - U Green heron: U U U U Black-crowned night heron: U U F F Turkey vulture: F F U - Canada goose: U - U U Brant: C - U - Wood duck: U U F F Gadwall ...
Reed cormorant: Microcarbo africanus: 2 Crowned cormorant: Microcarbo coronatus: 3 Little cormorant: Microcarbo niger: 4 Little pied cormorant: Microcarbo melanoleucos: 5 Red-legged cormorant: Poikilocarbo gaimardi: 6 Brandt's cormorant: Urile penicillatus: 7 Red-faced cormorant: Urile urile: 8 Pelagic cormorant: Urile pelagicus: 9 Spectacled ...
Double-crested cormorant. Order: Suliformes Family: Phalacrocoracidae. 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. Great cormorant, Phalacrocorax carbo (hypothetical) [6]
Brandt's cormorant (Urile penicillatus) is a strictly marine bird of the cormorant family of seabirds that inhabits the Pacific coast of North America. It ranges, in the summer, from Alaska to the Gulf of California , but the population north of Vancouver Island migrates south during the winter.
Yellow perch have been proven to grow the best in lakes where they are piscivorous due to the lack of predators. Perch do not perform well in cold, deep, oligotrophic lakes. Seasonal movements tend to follow the 20 °C isotherm and water temperature is the most important factor influencing fish distribution.
The location of Colorado in the United States. In the U.S. state of Colorado 519 species of birds have been documented as of September 2022 according to the Colorado Bird Records Committee (CBRC) of Colorado Field Ornithologists.