Table IV. - Nest Data Summary -- Redvers Study Area 

8S 

Summary of all Nests Found by Species Active Nests Only 
Total Total Percent Percent 
Species Found Abandoned™ Left Destroyed Hatched Success Destroyed Hatched Success 
Mallard 311 21 290 162 128 44,1 112 107 48.9 
B-w. teal 60 6 54 35 19 35.2 29 17 37.0 
Pintail 24 2 22 9 13 59.1 9 13 59.1 
Canvasback 26 l 25 vj 18 72.90 7 17 70,8 
Baldpate 8 3 5 4 1 20.0 3 1 25.0 
Lesser scaup 7 0 7 3 4 57.1 3 4 57.1 
G-w. teal 5 2 3 1 2 66.7 1 2 66.7 
Ringneck 5 - 5 2 3 60,0 2 3 60.0 
Redhead 4 - 4 3 1 25.0 3 l 25.0 
Shoveler 4 - 4 1 3 75.0 0 3 100.0 
Gadwall 2 0 2 0 2 100.0 0 2 100.0 
Total 456 35 42] 227 194 46,1 169 171 50.1 
* The abandoned nests in the second column have not been used in calculating nesting success because these 
were the cases where we were sure that abandonment had been caused by finding the nest and frightening the 
hen so as to cause desertion. 
