TABLE E-23.--Canada goose breeding pairs, by area, Wyoming, 1959-63 




Percent 
change from 
9-year 
average 




Percent 
Area 
Snake River-------+------------- 
Bear River---9-------9----------- 
Green River----<-------=--------- 
North Platte River---------.---- 
Wind River ----<---<-<<----------- 
Big Horn River------------------ 
1 Figures are average of years 1952-58. 
TABLE E-24.--Duck breeding-ground population estimates, Colorado, 1963 
Breeding pairs 
Q-year average, 
Area 1963 1962 1954-1962 

San Luis Valley---------------------- 9,982 
North Park-------------~------+~------ Seba t 
South Platte Valley------------------ 2,752 
Cache la Poudre Valley--------------- 1,660 
Yampa Velley--~------=--------------- 2,972 
Brown's Park-------~------~~-~-~-~--+-- 116 
Totalg~--------n------- === -- =~ 38,998 36, 334 21,259 
TABLE E-25.--Snecies composition of breeding duck population, Colorado, 1963 

hy 
Number Percent 
1954-1962 1954-1962 
Species 1963 1962 average average 
Dabblers 
Mallard-----~----~------------- 63.2 
Mexican duck-----------------+- -~ 
Gadwall Pe ee ee ae ae eee 9 . 4 
American widgeon-~~------------- 1.3 
Green-winged teal--------.------ 2.3 
Blue-winged teal------~-~------- 4.9 
Cinnamon teal------------------ 2.9 
Shove ler ----=----<-----2--2------ 3.2 
Pintail--------------.---------- 6.8 
Wood duck--------------------- -- 
Divers: 
Redhead------------------------ 3.3 
Canvasback--------------+-=---- 0.1 
Scaup------------------+------- 1.8 
Ring-necked duck--------------- -- 
Bufflehead--------------------- Trace 
Ruddy duck-------4+------------ Trace 
Miscellaneous 
Merganser--~---------=---2--==-- 0.5 
Totelijs-sseeceseeoceoescecece 100.0 
