
PACIFIC FLYWAY 
Estimate of Total Breeding Pairs on Three State Refuges from Dike Line 
Census - 1956 and 1957 



Farmington Public Shooting 
Ogden Bay Bay Grounds 
Species 1956 1957 1956 1957 1956 1957 
Canada Geese 87 78 36 36 12 12 
Mallard . 415 337 30 29 61 43 
Gadwall 214. 208 34 31 18 12 
Pintail 170 96 4] 39 18 16 
Cinnamon Teal 490 429 102 58 79 17 
Redhead 475 568 132 59 151 114 
Shoveler 135 129 28 13 18 8 
Green-winged Teal 15 10 2 4 1 2 
Blue- winged Teal 30 45 2 ] ] ] 
Ruddy Duck 85 149 16 18 8 9 
Baldpate 0 0 0 0 0 2 
American Goldeneye 0 0 - 0 0 0 ] 
Scaup LO; Beye aoe 0 1 0 0 
Total 2.112 2,049 » 423 289 367 237 
Species composition of the waterfowl breeding population in 
Utah was tabulated from graund and aerial census figures. Species 
composition of northern and southern half of the State was separated 
because of differences in habitat and, therefore, species used. No signi- 
ficant changes in species composition since the 1956 census were apparent, 
although several small fluctuations were evidenced. 
Species Composition of Waterfowl Breeding Populations in Southern and 
Northern Utah ~ 1956 and 1957 


ee eae ‘Narthern Utah _ Southern Utah 
Species | 1956 a 1957 1956 “gle te 
Redhead , P3020 49.8 9.8 16.6 
Mallard 18,0 | (14.4 31.4 32.1 
Cinnamon Teal 1546. - 10.4 20.6 19.8 
Gadwall : 8.5 6.4 8.7 6.8 

Continued +- 
37. 
