Entries must depict a live portrayal of one or more of the following five waterfowl species: wood duck, American wigeon
, Northern pintail, green-winged teal, and lesser scaup.
Eagle prey species include: (1) dabbling ducks: American Wigeon
(Anas americana), Mallard (Anas platyrhynchos), Northern Pintail (Anas acuta), and Green-winged Teal (Anas crecca); (2) diving ducks: Scaup (Aythya marila and A.
Tundra Swan Cygnus columbianus Mexican Duck Anas diazi Mallard Anas platyrhynchos Green Teal Anas crecca Gadwall Anas strepera Pintail Anas acuta American Wigeon
Anas americana Northern Shoveler Anas clypeata Unidentified dabbling duck Anas sp.
The migration chronology of banded mallards might be broadly representative of other dabbling duck species that breed in Alaska, such as the American green-winged teal (Anas carolinensis), American wigeon
(Anas americana), and northern pintail (Anas acuta), in which H5Nx was detected at lower latitudes.
From 2004-2006, we collected sera from 1406 wildcaught American wigeon
(Anas americana), mallard (Anas platyrhynchos), and northern pintail (Anas acuta) ducks at national wildlife refuges (NWRs) in North Dakota and wood ducks (Aix sponsa) at NWRs in South Carolina and Tennessee.
Visitors might spot: snow geese, tundra swans, canvasbacks, ring-necked ducks, redhead ducks, hooded mergansers, American wigeon
and common goldeneye.
increased over 2013 and are now 20 percent of their long-term average.
The agency has also gunned down the brown-headed cowbird, boat-tailed grackle, common raven, American crow, fish crow and waterfowl and wading birds that relish the coastal wetlands neighboring Kennedy, such as the wood duck, bufflehead, American wigeon
, semipalmated plover, sanderling, least sandpiper, black-crowned night heron, great egret and cattle egret, according to Port Authority records.
Rarest bird of the week is an American Wigeon
, across the Dee at Neston.
Cley NWT reserve held yet another transatlantic visitor in the form of an American wigeon
. Back in the North West, a red- necked grebe proved difficult to track down at Shotwick, Inner Marsh Farm RSPB, and Hilbre.
For example, during 1948-1996 the average peak abundances of northern pintail, American wigeon
and gadwall in the Illinois River valley (IRV) occurred during 27 October - 2 November, whereas mallard abundance peaked during 17-23 November (Havera 1999).