I examined the influence of age and time on female reproductive performance in a marked population of Lesser Scaup (Aythya affinis) breeding in southwestern Manitoba from 1977 to 1980. Arrival date ...

The lesser and greater scaup are better known as bluebills. As the nickname implies, both subspecies have blue bills, and the two birds are very difficult to differentiate. Each is part of the diving ...

Tens of thousands of migrating lesser scaup ducks have arrived on Mississippi River Pool 19. Located at Keokuk, Pool 19 is the spring migration’s most important stopover. Swarming northward from ...

The Auk, Vol. 121, No. 3 (Jul., 2004), pp. 917-929 (13 pages) The continental scaup population (Lesser [Aythya affinis] and Greater [A. marila] combined) has declined markedly since 1978. One ...

This week’s nature series features the Lesser Scaup, Aythya affinis, one of our most common diving ducks that is well known to hunters as the little bluebill or broadbill. This bird is common locally ...

The Rev. Paul Larson, an ardent duck hunter from Deer River, remembers the good old days of bluebill hunting. "It's nothing like it used to be," Larson said this past week with Minnesota's duck season ...

They're out there right now off the shores of San Francisco Bay, sometimes rafting up in large groups to resist the wind, sometimes diving beneath the gray water to feed: big, handsome ducks with ...

Teal and doves typically dominate discussion when the U.S. Fish and Wildlife Service's Regulations Committee (SRC) meets each June to fashion annual frameworks for hunting early-season migratory game ...

If it walks, waddles and quacks like a duck, it’s probably a mallard but might be a redhead, a scaup, a canvasback, a pintail or some similar pattern. Unlike most casual observers who suffer not if ...