Anas rubripes

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Synonyms for Anas rubripes

a dusky duck of northeastern United States and Canada

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American black ducks (Anas rubripes) administered CCFA IM had plasma concentrations [greater than or equal to] 1 [micro]g/ mL for a longer period than those dosed subcutaneously (SC), and CCFA seemed to have greater bioavailability after IM than subcutaneous administration although this was not fully tested via statistical analysis.
Eleven waterbird species (American Black Duck, American Coot, Bufflehead, Canada Goose, Gadwall, Hooded Merganser, Lesser Scaup, Mallard, Pied-Billed Grebe, Ring-Necked Duck, and Wood Duck) comprised at least 2.0% at either wetland during the 2 years of surveys.
Also included are mean density of total Canada geese (birds/[km.sup.2]) Strata Ridge & Valley Highlands Piedmont Species Mean SE Mean SE Mean SE Mallard 0.96 0.10 0.87 0.08 1.94 0.12 American Black Duck 0.01 0.01 0.02 0.01 0.01 0.00 Wood Duck 0.73 0.10 0.35 0.03 0.37 0.04 Canada Goose (IP *) 1.15 0.12 1.89 0.14 2.90 0.12 Canada Goose (TIB **) 2.73 0.35 3.87 0.30 8.77 0.54 Strata Coastal Plain Salt Marsh Species Mean SE Mean SE Mallard 1.16 0.04 1.18 0.06 American Black Duck 0.22 0.02 4.61 0.43 Wood Duck 0.46 0.03 0.13 0.04 Canada Goose (IP *) 1.08 0.10 1.55 0.12 Canada Goose (TIB **) 2.97 0.28 3.76 0.32 * Indicated Pairs ** Total Indicated Birds
DNA Fingerprinting of Michigan Migratory Waterfowl: Mallards and American Black Ducks. Christi Raines, Gail Kantak and David J.
Birdwatchers have been converging on the Conwy RSPB reserve hoping for a sight of an extremely rare visitor, an American black duck thought to have been blown right across the Atlantic
Haldane' s rule and American black duck x mallard hybridization.
W/Shot % Wood Duck 320 2 0.7 4 1.3 Green-Winged Teal 232 1 0.4 3 1.3 Blue-Winged Teal 68 0 0.0 2 2.9 Ring-Necked Duck 41 9 22.0 17 41.5 American Wigeon 39 0 0.0 1 2.6 Mallard 22 1 4.6 3 13.6 Northern Pintail 8 0 0.0 1 12.5 Northern Shoveler 5 0 0.0 0 0.0 Lesser Scaup 2 0 0.0 0 0.0 American Black Duck 1 0 0.0 0 0.0 Gadwall 1 0 0.0 0 0.0 Total 739 13 1.8 31 4.2 Soil samples containing spent shot collected on Butler Island, Altamaha Waterfowl Management Area, Georgia, 1993-94.
According to the 2014 survey by the New York State Ornithological Association, Canada goose, brant, gadwall, American black duck, mallard, canvasback, redhead, ring-necked duck, greater scaup, white-winged surf scoter, long-tailed duck, bufflehead, common goldeneye, three species of merganser (hooded, common, red-breasted), and ruddy ducks were some of the most commonly observed species.
All describe the American Black duck, Anas rubripes.
The 1980s counts documented the crash of the American black duck, resulting in wildlife biologists decreasing hunting pressure on them.
HUNTER: Stephen Skarosi, Burghill, OH band#: 1917-76221 SPECIES: American Black Duck (D) BANDED: 08/22/2012 LOCATION: 30 m NE Senneterre, QC RECOVERED: 12/28/2013 LOCATION: Kent County, DE
The move will conserve and protect migratory waterfowl habitat within those areas, with special consideration given to the American black duck.
Puddle ducks--Mallard, American black duck, Northern pintail, Wigeon, Green-winged teal, Blue-winged teal, Cinnamon teal, Northern shoveler, Gadwall, Wood duck, Mottled duck, Fulvous whistling duck, Black-bellied whistling duck
Efforts were stepped up to save the American black ducks after a decline was noticed in the bird's wintering population in the 1980s.
"The things people see are common loons, American black ducks, common mergansers, common golden eyes, and ring-necked ducks.
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