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American Black Duck	Anas rubripes
American Wigeon	Anas americana
Barrow's Goldeneye	Bucephala islandica
Black Scoter	Melanitta nigra
Blue-winged Teal	Anas discors
Brant	Branta bernicla
Bufflehead	Bucephala albeola
Canada Goose	Branta canadensis
Canvasback	Aythya valisineria
Cinnamon Teal	Anas cyanoptera
Clark's Grebe	Aechmophorus clarkii
Common Goldeneye	Bucephala clangula
Common Loon	Gavia immer
Common Merganser	Mergus merganser
Eared Grebe	Podiceps nigricollis
Eurasian Wigeon	Anas penelope
Gadwall	Anas strepera
Greater Scaup	Aythya marila
Greater White-fronted Goose	Anser albifrons
Green-winged Teal	Anas crecca
Harlequin Duck	Histrionicus histrionicus
Hooded Merganser	Lophodytes cucullatus
Horned Grebe	Podiceps auritus
Lesser Scaup	Aythya affinis
Mallard	Anas platyrhynchos
Northern Pintail	Anas acuta
Northern Shoveler	Anas clypeata
Oldsquaw	Clangula hyemalis
Pacific Loon	Gavia pacifica
Pied-billed Grebe	Podilymbus podiceps
Red-breasted Merganser	Mergus serrator
Redhead	Aythya americana
Red-necked Grebe	Podiceps grisegena
Red-throated Loon	Gavia stellata
Ring-necked Duck	Aythya collaris
Ross' Goose	Chen rossii
Ruddy Duck	Oxyura jamaicensis
Snow Goose	Chen caerulescens
Surf Scoter	Melanitta perspicillata
Trumpeter Swan	Cygnus buccinator
Tundra Swan	Cygnus columbianus
Western Grebe	Aechmophorus occidentalis
White-winged Scoter	Melanitta fusca
Wood Duck	Aix sponsa
Yellow-billed Loon	Gavia adamsii

We are pleased to be able to provide life history information directly from the following preeminent sources:

• Fitzgerald, JP, Meaney, CA, Armstrong, DM. 1994. Mammals of Colorado. Niwot: Denver Museum of Natural History and University Press of Colorado.



• Andrews, R, Righter, R. 1992. Colorado Birds. Denver: Denver Museum of Natural History.



• Hammerson, GA. 2000. Amphibians and Reptiles in Colorado, Revised Edition. Niwot: University Press of Colorado.



• Woodling, J. 1984. Game Fish of Colorado. Denver: Colorado Division of Wildlife.



• Woodling, J. 1985. Colorado's Little Fish. Denver: Colorado Division of Wildlife.

Photos come from a variety of sources, most of which are copyrighted. Click on a picture to see the specific policy for use.

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General Wildlife Links
  Colorado Audubon
  Colorado Birding Society
  Colorado Field Ornithologist's
  Rocky Mnt. Bird Observatory
  TNC Migratory Bird Program