Ixx INTRODUCTION 



Lams argentatiis : Herring Gull. — Rare visitor. 



Larus delawarensis : Riug-billecl Gull, — Cominoii during migrations. 



Larus Philadelphia : Bonaparte Gull. — Regular but not very common 



visitor. 

 Sterna forsteri : Forster Tern. — Rare visitor. 

 Sterna hirxindo : Common Tern. — Occasional visitor. 

 Hydrochelidon nigra surinamejisis : 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 cucidlatus : 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. 

 Qiierquedida 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 ajfinis : 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 hyperhorea : Lesser Snow Goose. — Rare visitor. 

 Anser alhifrons gamheli : White-fronted Goose. — Rare visitor. 

 Branta canadensis : Canada Goose. — Not common. 



Branta canadensis hatchinsii : Hutchins Goose. — Common for the species. 

 Olor columhianus : 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. 

 JRecurvirostra americana : Avocet. — Tolerably common for the species 



during migrations. 

 Gallinago delicata : Wilson Snipe. — Not very common. 

 Macrorhamjihus scolopaceus : Long-billed Dowitcher. — Rare. 

 Micropalama him ant opus : Stilt Sandpiper. — Very rare. 

 Tringa bairdii : Baird Sandpiper. — Very common. 

 Tringa minutilla : Least Sandpiper. — Very common. 

 Limosafedoa: Marbled Godwit. — Tolerably common. 



