Z9 
Table VIII. - Brood Averages - Age Classes 

wlass O* Class I wlass II wlass III All 
Species 19521953 T9522. «1953-1952, —~CS*SCT*SS s19520——~—~T SSC T952.~—~C«*d'HD. 
Mallard 6.96 6.91 6.16 6.59 6,57 7,04 6.13 6.55 6.42 6.74 
B-w. teal 8.87 8.50 7:97 8.15 7.34 8.24 7,25 7.98 7.94 8.21 
Pintail 6.40 7.12 25 5.71 6,50 6.00 5.00 5.19 5.62 5.82 
Baldpate 8.40 7.68 7.13 7.19 7.83 6.54 7.00 7.15 7.81 7.23 
Canvasback 7.25 6.42 6.25 6,67 6.09 6.80 5.64 6.07 6.28 6.53 
* Class O is made up of broods one week or less in age. 
Table X. - Aerial VS Ground Brood Counts -- Redvers Study Area 

Total Number of Broods Observed at Peak of Brooding 
Inner 1/16-Mile Season - Outer 1/16-Mile 
Ground*® Air Percent Seen Ground*  Air* Percent Seen _ 
Species from Air from Air 
Mallard 47 6 13 39 5 13 
Blue-winged teal 43 7 16 26 5 19 
Pintail 2 ] 33 4 0 0 
Baldpate 10 0 0 6 0 0 
Green-winged teal 5 0 0 4 0 0 
Canvasback 13 1 8 6 1 17 
Lesser scaup 4 0 0 3 0 0 
Shoveler 7 0 0 2 0 0 
Gadwall 0 0 0 2 0 0 
Redhead 1 0 0 1 0 0 
Ring-necked duck 1 0 0 mn - 0 
Ruddy duck 0 l - 0 1 - 
Unidentified - 13 - 0 24 - 
Total 133 29 22 93 36 39 
* Ground counts made on August 2-6; Aerial count on August 2. 

