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Johnston Island National Wildlife Refuge
rolljack
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Vervet Monkey (Chlorocebus aethiops)
theman
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TALLIL AIR BASE - Here comes the Predator
afmil
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60-K loader - Help is on the way
afmil
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Aleutian Cackling Goose project and Pete the Border Collie, (Album)
rolljack
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Togiak Refuge Mountain Region
rolljack
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Mallard ducks in a Wetland
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rolljack
Registered: May 2008
Posts: 8,133
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Adult male in alternate plumage is unmistakable. Females, immature and eclipse-plumage males could be confused with Black Ducks, Gadwalls and Mottled Ducks, but note the blue speculum with white borders on both sides. Gadwalls are also distinctive in their steeper forehead, gray bill with orange edges and white belly patch. Hybrid Mallard x Black Ducks are often seen and are darker than Mallards, with a more purple speculum bordered by white on one or both edges and usually show some traces of the Mallard plumage.
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| · Date: Wed May 28, 2008 · Views: 57 · Filesize: 53.3kb, 75.1kb · Dimensions: 516 x 768 ·
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Credit: Nieminen, Gene/USFWS
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Alternate Names | Scientific Name: Anas platyrhynchos
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Additional Categories: Mallard Ducks
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