3, Species Composition - Pacific Flyway (continental*) 1952 and 1953 
(comparable coverage) 
Species - Percent of Birds Identified Percent Change 
es 1952 | 1953 1952-1953 
Pintail | 26.7 | 23.5 - 10,1 
Mallard 14.5 22.2 + 56.2 
Shoveler 7.8. 5.5 - 28,2 
Baldpate ae re 2D 9.7 + 25,0 
Scaup te? 5,2 - 29.9 
Coot | 6.8 10,2 - + 53.0 
Green-winged teal 4.4 3.1 - 29,4 
Snow Goose 4,2 5,1 + 22,0 
Cackling Goose 3,8 1,1 - 71,8 
Scoter and Bider 3.0 2,8 - 5,0. 
Black Brant 22 2,0 - 7,6 
Canada Goose 2,0. 2,0 | + 3.8 
White -fronted Goose 1.9 bye. - 27.6 
Bufflehead 1.5 6 ~ 60.1 
Gadwall 1.4 1,0 - 24,6 
Goldeneye bee 1,3 + 7.4 
Tree Ducks _ To tr. - 95,5 
Ruddy duck 6 1,1 + 72,9 
Redhead i5 .3 - 26,3 
Canvas back 4 6 + 48,8 
Blue-winged teal 74 4 - 8,5 
Merganser “2 04 + 2,4 
Whistling Swan ~ <“e 4 + 44,6 
Old Squaw el ol + 63,2 
Ring-necked Duck tr. "tr. + 21,0 
Trumpeter Swan tr. tr. - 17.2 
Wood duck © | tr. tr. + 62,4 
Emperor Goose tr. tr. - 70.5 
Ross's Goose . tr. Rel a 
a a ee Lee ee ee tees eel ee ee ee 
Total | 100,0 i100,0 + 12.2 
a Oe \ 
* Includes Alaska, British Columbia, Alberta, Pacific Flyway States and 
West Coast of Mexico, 
