In North America, diving ducks are represented by canvasbacks, redheads, ring-necked ducks, greater scaup
and lesser scaup.
This was a different kind of treasure for us and soon singles and doubles of greater scaup
were buzzing our decoy spread set at the tip of a long, brush-covered island.
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.
Waterfowl entries may depict the black brant, common merganser, greater scaup
or dusky Canada goose, also shown in their customary surroundings.
These birds have earned the unfortunate distinction of a spot on Audubon's list: American Bittern, Black-throated Sparrow, Boreal Chickadee, Common Grackle, Common Tern, Eastern Meadowlark, Evening Grosbeak, Field Sparrow, Grasshopper Sparrow, Greater Scaup
, Horned Lark, Lark Sparrow, Little Blue Heron, Loggerhead Shrike, Northern Bobwhite, Northern Pintail, Ruffed Grouse, Rufous Hummingbird, Snow Bunting and Whip-poor-will.
Off-shore, several thousand common scoter were in a huge "raft", which included redthroated diver, great-crested grebes, and a small group of greater scaup
(Aythya marila), northern pintails, and spectacled eiders (Flint and Grand, 1996; Grand and Flint, 1997; Flint et al.
Muscovy duck Cairina moschata Mallard Anas platyrhynchos Greater scaup
Aythya marila Tufted duck Aythya fuligula Common merganser Mergus merganser Smew Mergus albellus Falconiformes Common buzzard Buteo buteo Rough-legged hawk Buteo lagopus Peregrine falcon Falco peregrinus Galliformes Common peafowl Pavo cristatus Domestic chicken Gallus gallus Charadriiformes (herring gull) Larus argentatus Strigiformes (eagle owl) Bubo bubo Passeriformes (Eurasian magpie) Pica pica All birds No.
Both zebra and quagga mussels have become important food sources for several local species in Ontario, including various crayfishes and fish, as well as waterfowl, such as the lesser scaup, the greater scaup
, and the bufflehead.
Waterfowl are also featured including the American widgeon, black ducks, blue-winged teal, cinnamon teal, green-winged teal, gadwall, mallard, pintail, shoveler, wood duck, canvasback, greater scaup
, lesser scaup, redhead, Canadian geese, and the snow goose.
Diving ducks, such as lesser and greater scaup
and common golden-eye, now eat prodigious quantifies of zebra mussels during migration through the Great Lakes," Christine Custer at the Upper Mississippi Science Center in La Crosse, Wis.
Paddling serenely on an evergreen-rimmed two-acre pond are greater scaup
and Hottentot ducks; bar-headed, brent and emperor geese; and whistler swans.