Table VI. - Breeding Pair and Brood Counts, Ducks, Alaska, 1954, 
a er ee 
Fort Yukon Minto Lakes Yukon Delta Copper River Delta 
Area 1953 1954 1953 1954 1954 1954 
a a ee 
Aerial transect counts, 
June Prs. per sq. mi. 8.4 10* 12.3 12.5 3. 2%% 39.1 
Ground counts, July 
Broods per sq. mi. L7.é 12.5 - - 36. 1** 4.1 
Combined aerial-ground 
counts July-August 
Broods per Sq. mi. - ~ 2 9,97 . 
Aerial counts, July 
Broods per sq. mi. ™ ~- 4.75 mn - I 

* Ground counts estimate 50 per square mile on sample study area. 
*x* Areas not comparable. 
Table VII. - Nesting Success, Alaska, Comparison 1954 with 1951, 1953- 
Percent Successful and Number of Nests. 
Fort Yukon % Success- Minto Lakes 
Species 1953. ~——é«<22: 9H ful 1951 —*«1953°—~C*é«<222S A 
Baldpate 67(3) 0(2) 50(2) ?(1) 0(1) 
Canvasback 62(8) 25(4) 100(1) 75 (4) 
Mallard 0(1) 100(1) 40(5) 100(1) - 
Pintail 67(9) 100(4) 68(14) 100(2) 0(1) 
Shoveler 80(5) 50(3) 34(7)  100(1) ~ 
Scaup 23(13) 29(52) 18(59) 33(12) 44(39) 
Other - 100(2) 66(3) 50(2) 

Total 56(39) 34(68) 30(91) 50(17) 45(47) 
