Table I. - Average Brood Size by Age Classification in Eastern Oregon 
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Class I class [I Ulass III 
Females No. No. Average No. No. Average "No. No, Average 
Species ' w/f/broods' Broods Young size Broods Young Size Broods Young Size 
Mallard 161 50 375 7.5 59 432 Tad 72 510 ta 
Pintail 16 8 53 6.6 3 19 6.3 5 34 6.8 
Cinnamon teal 50 41 265 6.5 8 5467 1 12 12.0 
Green-winged teal 3 1 3 3.0 2 9 4.5 Z ai FS 
Blue-winged teal 1 - - - 1 7 7.0 - S “ 
Gadwall 119 80 632 T.4 32 224 7.0 7 47 6.7 
Redhead 130 31 222 Y eA 69 442 6.4 32 198 6.2 
Ruddy duck 43 36 230 6.4 7 51 7.3 ~ - 
Shoveler 9 8 58 4.2 1 5 5.0 - - - 
Wood duck 1 - - - 1 3 3.0 - J 
Total ducks 533 255 1, 838 Tee 183 1,246 6.8 117 801 6.8 
Canada geese 69 26 122 4.7 18 92 5.1 25 116 4.6 
Table II, - Average Brood Size by Age Classification in Western Oregon 
Class I class II Class III 
Females No. No. Average No. No. Average No. No. Average 
Species w/ broods Broods Young Size Broods Young Size Broods Young Size 
Mallard 44 4 22 5.5 18 138 Tet 22 168 7.6 
B-w. teal 3 - - - 3 17 & 7 i“ a e 
Wood ducks 19 5 39 7.8 7 63 9.0 7 38 5.4 
OS pee en ee ee ee ey oe Vee a et ey ak ee en a a ed ere De i he 
Total ducks 66 9 61 6.8 28 218 1.8 29 206 7.1 
Canada geese 1 1 3 3.0 - - - - * * 
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