



Species Composition - Central Flyway - 1958 and 1959 
(Comparable Coverage) 
Percent of Birds Identified Percent 
Species oe ae 1958 959 _ Change 






Mallard L5.7 30.4 ~ 42.1 
Pintail 11.7 20.5 f 52.7 
Baldpate 4.3 4k - 1.1 
G. W. Teal 2.7 4.9 - 56.1 
B. W. Teal oe3 3.5 # 33.6 
Shoveler 1.4 1.3 - 21.1 
Gadwall . ues 8 ~ 37.3 
Mottled ol Tr. - 92.1 
Wood Duck Tr. . spl f 122.2 
Black Duck Tr. Tr. =. 
Sub-Total 69.3 65.9 -~ 17.3. 
Diving Ducks 
Scaup 9.3 8.3 -~ 21.8 
Redhead 5.4 10.7 f 72-9 
Canvasback 3 22 - 48.1 
Goldeneye | 2 .2 ~f 7.8 
Ringneck ol Tr. - 76,0 . 
Ruddy : , Tr. Pal f 146.5 
Bufflehead . Tr. Tr. - . 
Sub-Total 15.3 19.5 Li. 
Mise. Ducks 
Merganser 7 9 f 14.0 
Tree Ducks sip ee 2 / 184.8 
Sub-Total of 1 Bf . ah. 6 
Geese 
Snow Goose 2.9 2.0 ~ 38.2 
Canada Goose 243 2.5 = eh 
Blue Goose 5 +2 - 56.6 
White-fronted Goose 3 3 - 17.9 
Sub-Total 6.0 5.0 - 25.1 
Swans ; 
Trumpter Tr. Tr. f 51.0 
Whistling Tr. Tr. - 
Sub-Total Lig Lge 51.0 
Coot “d 2 ~ 15.5 

GRAND TOTAL | 100,0 99.49 - 13,0 

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