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INTRODUCTION 
Larus argentatus: Herring- Gull. — Rare visitor. 
Larus delawarensis: Ring-billed Gull. — Common during migrations. 
Larus Philadelphia: Bonaparte Gull. — Regular but not very common 
visitor. 
Sternaforsteri: Forster Tern. — Rare visitor. 
Sterna hirundo: Common Tern. — Occasional visitor. 
Hydrochelidon nigra surinamensis: Black Tern. — Regular visitor. 
Pelecanus erythrorhynchos: White Pelican. — Occasional visitor. 
Pelecanus occidentalis : Brown Pelican. — One specimen taken in 1900. 
Merganser americanus: Merganser. — Not common; sometimes winters at 
springs in Laramie County. 
Lophodytes cucullatus : Hooded Merganser. — Rare. 
Anas boschas : Mallard. — Common migrant. 
Chaulelasmus streperus: Gadwall. — Common. 
Mareca americana: Baldpate. — Common. 
Nettion carolinensis : Green-winged Teal. — Common. 
Querquedula discors: Blue-winged Teal. — Common. 
Querquedula cyanoptera: Cinnamon Teal. — Occasional on city reservoirs. 
Spatula clypeata: Shoveller. — Common. The blue and green winged teal 
and the shoveller breed commonly in suitable localities a few miles from 
town. 
Dajila acuta: Pintail. — Common. 
Aix sponsa : Wood Duck. — Very rare visitor. 
Aythya americana: Redhead. — Common migrant. 
Aythya vallisneria: Canvas-back. — Common migrant, but not so common 
as the redhead. 
Aythya marila: Scaup Duck. — Not common. 
Aythya affinis : Lesser Scaup Duck. — Rare. 
Aythya collaris: Ring-necked Duck. — Not common. 
Clangula clangula americana: American Golden-eye. — Rare. 
Clangula islandica: Barrow Golden-eye. — Rare. 
Charitonetta albeola: Buffle-head. — Tolerably common. 
Oidemia americana : Scoter. — Rare. 
Erismatura jamaicensis : Ruddy Duck. — Very common migrant. 
Chen hyperborea: Lesser Snow Goose. — Rare visitor. 
Anser albifrons gambeli: White-fronted Goose. — Rare visitor. 
Branta canadensis: Canada Goose. — Not common. 
Branta canadensis hutchinsii: Hutchins Goose. — Common for the species. 
Olor columbianus : Whistling Swan. — Rare. 
Ardea herodias : Great Blue Heron. — Common, for the species. 
Nycticorax nycticorax ncevius: Black-crowned Night Heron. — Not com¬ 
mon. 
Porzana Carolina: Sora. — Tolerably common. 
Fulica americana : Coot. — Very common. 
Phalaropus lobatus: Northern Phalarope. — Rare. 
Steganopus tricolor: Wilson Phalarope. — Tolerably common; breeds 
abundantly on Laramie plains fifty miles west of Cheyenne. 
Recuryirostra americana: Avocet. — Tolerably common for the species 
during migrations. 
Gallinago delicata : Wilson Snipe. — Not very common. 
Macrorhamphus scolopaceus: Long-billed Dowitcher. — Rare. 
Micropalama himantopus: Stilt Sandpiper. — Very rare. 
Tringa bairdii: Baird Sandpiper. — Very common. 
Tringa minutilla : Least Sandpiper. — Very common. 
Limosa fedoa: Marbled Godwit. — Tolerably common. 
