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Assessing Breeding Populations of Ducks by Ground Counts

Table 7

Table 7. Comparison of indicated pairs of diving ducks from ground census and observed nesting population, May 20 to June 5, Kindersley Study area, 1956 to 1959.
Species 1956 1957 1958 1959
Mean pairs Nest population % breeding Mean pairs Nest population % breeding Mean pairs Nest population % breeding Mean pairs Nest population % breeding
     Lesser scaup 57 26 46 29 15 52 27 12 44 70 3 4
     Canvasback 1 1 100 7 0 0 1 0 0 2 0 0
     Redhead 5 4 80 7 2 29 1 0 0 15 0 0
     Ruddy 1 0 0 2 0 0 2 0 0 27 0 0
Total 64 31 48 45 17 38 31 12 39 114 3 3
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