Difference between revisions of "Pelagic Cormorant"

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(Plagiarism: Entire page copied word-for-word, with pics, from the US Geological Survey - http://www.absc.usgs.gov/research/seabird_foragefish/seabirds/flash_cards/pelagic_comorant.html)
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[[Image:Pelagic_cormorant.jpg|thumb|300px|Pelagic Cormorant adult on an empty nest]][[Image:Pelagic_cormorant.gif|thumb|200px|A Pelagic Cormorant adult with 3 large chicks]]The '''Pelagic Cormorant''' and the [[Red-faced Cormorant]] are two of the three species of [[cormorants]] that nest in [[Alaska]]. They differ from the third cormorant species, the [[Double-crested Cormorant]], in that they are strictly [[marine]] birds. Cormorants are part of a large family of seabirds that includes [[pelicans]], boobies, tropicbirds, and frigatebirds. They are diving birds that use their large webbed feet to swim underwater in search of [[food]]. They like to eat a wide variety of foods but their favorite is fish that live close to the ocean floor. Their feathers are different from other diving birds in that they are not naturally waterproof. In order to waterproof their feathers, cormorants must spend a lot of time preening or grooming their feathers with oil they collect on their bills from a gland at the base of their tail.
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According to the US Geological Survey, the '''Pelagic Cormorant''' is one of "the three species of [[cormorants]] that nest in [[Alaska]]."<ref>US Geological Survey[http://www.absc.usgs.gov/research/seabird_foragefish/seabirds/flash_cards/pelagic_comorant.html]</ref>
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Unlike many other seabirds, cormorants do not like to stray far from their nesting colonies on land. There they build large nests out of whatever plant material they can find and are not above stealing it from one of their unsuspecting neighbors. Often one bird of the pair will present a piece of grass or seaweed to its mate as a way of strengthening their bond.
 
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Pelagic Cormorants nest on coastal headlands or islands throughout [[Alaska]] and the Asian North [[Pacific]]. Red-faced Cormorants nest in a much smaller region of the North Pacific that stretches from northern [[Japan]] through the Aleutian Islands. Both species use their own excrement to cement their nests onto small ledges of vertical cliff faces.
 
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Pelagic and Red faced Cormorants are not only similar in habits, but also in their appearance. During the winter they look nearly identical except the Red-faced Cormorant is slightly larger. However, in the spring the birds begin to dress-up for the breeding season and the two species can be more easily separated by their appearance. Pelagic Cormorants develop a patch of dark red skin around their eyes and base of the bill. They often develop long white plumes on their necks. Red-faced cormorants develop a patch of reddish-orange skin around their eyes that extends up onto their foreheads and the base of their bill turns light blue. Both species have two crests on their heads but these are much more obvious on Red-faced Cormorants.<ref>http://www.absc.usgs.gov/research/seabird_foragefish/seabirds/flash_cards/pelagic_comorant.html</ref>
 
 
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Revision as of 04:36, October 11, 2008

According to the US Geological Survey, the Pelagic Cormorant is one of "the three species of cormorants that nest in Alaska."[1]

References

  1. ↑ US Geological Survey[1]
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