105 




Single 
Sq. Miles ; Pairs Drakes Total Total Pairs per Ducks per 
Censused Species _Seen Seen Pairs Ducks Sq. Mile Sq. Mile 
19.25 _ Mallard 287 67-— 38h 708 18 36.8 
Pintail Tal 1h 55 ~—«i120 2.85 5.7 
' Gin. Teal 232 8 2h0 Bo 12.41 2.82 
Gadwall 119 7 126 252 6.53 13.06 
Redhead 68 h 72 Luly 3.73 76 
Canvasback 7 a 7 1 Oh, .08 
Ruddy | 11 & *. 17. gh 88 1.76 
Shoveler LO 9 9 98 25h 5,08 
Canada Goose _1)6 # 146 292 7056 15.12 
TOTAL 955 115 1,070 2,140 55.58 111.16 
* Only pairs of geese counted. 
Table 2. -- Oregon Waterfowl Breeding Population West of Cascades, 1950 
Single 
Sq. Miles Pairs Drakes Total Total Pairs per Ducks per 
Censused Species Seen Seen Pairs Ducks Sq. Mile Sq. Mile 
27.8 Mallard 56 36 «0 92—~*té«‘iB, tsi 6.60 
Pintail 10 3 13 26 47 Ay 
Blue W. Teal 2 - 2 h sOR 1h 
Wood Duck 21 ual 32 64, Lele 2.32 
~ “TOTAL - - 93 50 1h3 286 - 51h 10.28 
Table 3. -- Comparative Data, Waterfowl Breeding Populations East of Cascades, 
1949 - 1950 
a al aa eet at rele 
19h9 1950_. 
Pairs per Ducks per Pairs per Ducks per 
Species Sq. Mile Sq. Mile Sq. Mile Sq. Mile 
Mallard 7.9 15.8 18.4 36.8 
Pintail 1.33 2.66 2.85. Gel 
r. Cin, Teal 9.1 18.2 12.41 2,82 
Blue W. Teal - ~ 202 Oh 
Gadwall 2.07 4.14 6.53 13.06 
. Redhead 2.51 5.02 3.73 746 
Ganvasback - - o ae 
Ruddy - - . : 
Shoveler - = 205k 5208 
Canada Goose 907 19.44 7.56 10l2 
TOTAL 32.7. 65.4 55.58 111.16 
=— 
