Located within New York City, the refuge covers more than 9,000 acres, and is a great place for spotting birds such as snow geese, lesser and greater scaup
, ruddy duck, ring-necked duck, green-winged teal, northern pintail, American wigeon and gadwall.
The tundra-dwelling Greater Scaup
is under pressure from human-caused pollution and climate change, which affects ecosystems in its breeding grounds.
Nonetheless, our estimate of apparent survival was lower than those reported for sympatric nesting greater scaup
In the winter, greater scaup
are usually found in bays and estuaries along both coasts.
Correlations have even been observed in contaminant-exposed species such as polar bear and greater scaup
ducks, from geographically remote Arctic regions.
The hunter and his dog in their boat may be but a small part of the depiction of two greater scaup
winging across a windswept waterway.
Through the 1950s, '60s, 70s and early '80s, the annual USFWS waterfowl breeding population surveys pegged scaup numbers (lesser and greater scaup
combined) in the traditional survey area between 4.
Worcester's 2012 count totaled an impressive 89 species, which were dominated by 1,741 Canada geese, 1,533 ring-billed gulls, 1,373 black capped chickadees, 1,162 crows, 1,108 juncos, 996 robins, 881 starlings, 829 mallards, 795 house sparrows, 437 common mergansers, 401 goldfinches, 345 rock pigeons, 324 white-breasted nuthatches, 292 titmice, 274 hooded mergansers, 245 mourning doves, 236 blue jays, 196 cardinals, 196 house finches, 190 downy woodpeckers, 174 bluebirds, 138 greater scaup
, 138 song sparrows, 135 redpolls, 118 common goldeneyes, 114 red-breasted nuthatches, and 100 black ducks.
Wintering waterfowl include black ducks, greater scaup
, bufflehead, canvasback and long-tailed ducks.
A returning Greater Scaup
was also seen with a flock of tufted ducks at Trawsfynydd.
Conversely, 21 species occurred after 1950 that had not been reported prior to that year: green-winged teal, northern pintail, greater scaup
, common goldeneye, red-breasted merganser, golden eagle, gyrfalcon, black-bellied plover, ruddy turnstone, sanderling, least sandpiper, white-rumped sandpiper, Thayer's gull, Iceland gull, glaucous gull, American robin, northern wheatear, yellow-rumped warbler, blackpoll warbler, Harris's sparrow, and white-crowned sparrow.
The temperature drop and frozen marshes in Upstate New York have given way to one of duck hunting's best days, as this region is known for its large congregation of lesser and greater scaup
during the fall migration.
With much open water, waterfowl were plentiful: greater white-fronted goose, 1; pink-footed goose, 1 (new species for the count); snow goose, 1; Canada goose, 2,440; mute swan, 14; wood duck CW (seen during count week but not on count day); gadwall cw; American wigeon, 1; American black duck, 55; mallard, 786; northern pintail, 1; green-winged teal, 9; ring-necked duck, 28; greater scaup
, 58; lesser scaup, 12 (new high); white-winged scoter, 1; bufflehead, 10; common goldeneye, 106; Barrow's goldeneye, 1; hooded merganser, 355 (new high); common merganser, 96; American coot, 2; wild turkey, 226 (new high); common loon, 9; horned grebe, 4.
Iridescent colors such as the head feathers of greater scaup
, a hummingbird's throat patch (gorget), and the contour feathers of a grackle, all work in a similar way.
Key words: Aythya affinis, Aythya marila, boreal forest, egg success, greater scaup
, lesser scaup, hatchability, nest success, Northwest Territories, Subarctic