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Lesser Scaup
Web Poll Previous Polls Waterfowl Bio's and Biology Home > Research > Waterfowl Bio's & Biology > Lesser Scaup (Aythya affinis) by Wanda Gorsuch Common Names: bluebill, little bluebill, broadbill In North America, ... working on figuring out the many factors that may be contributing to this decline. Since lesser scaup make up about 89% of the total population, they are of particular research interest ...
deltawaterfowl.org

Southeastern Arizona Bird Observatory - Checklist of the Birds of Sonora and Northwestern Mexico
Wood Duck Gadwall Eurasian Wigeon American Wigeon Mallard Blue-winged Teal Cinnamon Teal Northern Shoveler Northern Pintail Green-winged Teal Canvasback Redhead Ring-necked Duck Greater Scaup Lesser Scaup Harlequin Duck Surf Scoter White-winged Scoter Black Scoter Long-tailed Duck (Oldsquaw) Bufflehead Common Goldeneye Hooded Merganser Common Merganser Red-breasted Merganser Ruddy Duck Osprey - ...
www.sabo.org

Puerto Peņasco, Sonora, Mexico Christmas Bird Counts
Redhead 94 15 10 2 Ring-necked Duck 2 cw 1 Greater Scaup 1 1 Lesser Scaup 19 62 2 2 10 12 2 Surf Scoter 50 11 11 cw 3 ... 1 1 1 Great Horned Owl 1 Burrowing Owl 1 1 1 1 1 3 2 Lesser Nighthawk 13 Anna's Hummingbird 16 12 28 57 17 39 18 Costa's Hummingbird 13 ... Oriole cw Cassin's Finch 1 House Finch 407 319 305 103 114 87 78 Lesser Goldfinch 6 1 8 House Sparrow 99 207 237 497 379 365 287 Total Species ...
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NMPIF Appendix A
Teal CITE Anas cyanoptera Northern Shoveler NNSH Anas clypeata Northern Pintail NOPI Anas acuta Green-winged Teal GWTE Anas crecca Canvasback CANV Aythya valisineria Redhead REDH Aythya americana Lesser Scaup LESC Aythya affinis Hooded Merganser HOME Lophodytes cucullatus Common Merganser COME Mergus merganser Ruddy Duck RUDU Oxyura jamaicensis Osprey OSPR Pandion haliaetus Mississippi Kite MIKI ...
hawksaloft.org

NMPIF Appendix B
Importance Pop. Trend Threats to Breeding Global Scores Pop. Trend Uncert. I. High Total Score (22) Lesser Prairie-Chicken 31 5 3 4 19 8 Mountain Plover 29 5 3 4 17 7 ... Sparrow 17 4 2 3 8 1 Black-throated Sparrow 17 5 1 2 9 2 Lesser Nighthawk 16 5 3 2 6 6 Hepatic Tanager 16 3 2 3 8 3 Dark- ... -Dove 15 1 3 3 8 8 Little Blue Heron 14 2 3 3 6 8 Lesser Scaup 14 1 3 2 8 8 Bank Swallow 14 3 3 2 6 8 |Home| | ...
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Birds at Mono Lake
By late spring anywhere from 44,000 to 65,000 California Gulls arrive to breed on Monos lesser-known islands. Mono Lake is home to the second largest California Gull rookery in North America (Great ... . If you take some time to explore off the beaten path you may encounter the occasional Bufflehead, Lesser Scaup, Snow Goose, or even migrating Tundra Swans in the late fall. Click here for the North ...
monolake.org

RIDOLFI Inc. - Commencement Bay Post-Restoration Monitoring Program, WA
Heermann's gull hermit thrush herring gull hooded merganser horned grebe house finch house sparrow house wren killdeer least sandpiper lesser scaup Lincoln's sparrow mallard marsh wren mourning dove Northern harrier Northern pintail Northern rough-winged swallow Northern shoveler Northwestern crow olive-sided flycatcher orange-crowned warbler Oregon ...
ridolfi.com

Southeastern Arizona Bird Observatory's Birding Guide: The Chiricahua Mountains & Sulphur Springs Valley
The ponds are deep enough to support diving species such as Canvasback, Ring-necked Duck, Lesser Scaup, Redhead, Common Merganser, and Western and Clark's Grebe. In winter, Sandhill Cranes can sometimes be seen loafing in ...
sabo.org

Coastal and Pelagic Birds of Long Island
Occasionally found in sheltered areas of bays and harbors. Greater Scaup (Aythya marila) - hard to differentiate from the following species, both of which are referred to ... movement of 250,000 birds was reported for Great South Bay on 3 December 1929! Lesser Scaup (Aythya affinis) - common overwintering bird but hard to separate from preceding species. Has a ...
cresli.org

USFWS Regulations Committee Approves Scaup Harvest Strategy - Bag Limit Could be Reduced to One Bird for Upcoming Season
But on page 34694 of the Federal Register, the USFWS, commenting on its proposed scaup harvest strategy on June 18th, made the following entry, "We note that no substantive criticisms ... both substantive and offered to the Service." The spring breeding population of scaup (which includes both greater and lesser scaup, also called bluebills) has declined since the early 1970s. The population ...
deltawaterfowl.org