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Comparisons of Aspects of Breeding Blue-Winged and Cinnamon Teal in Eastern Washington

John W. Connelly and I. J. Ball
The Wilson Bulletin
Vol. 96, No. 4 (Dec., 1984), pp. 626-633
Stable URL: http://www.jstor.org/stable/4161996
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Comparisons of Aspects of Breeding Blue-Winged and Cinnamon Teal in Eastern Washington
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Abstract

Time budgets, habitat use, feeding methods, and social behavior of breeding Blue-winged (Anas discors) and Cinnamon (A. cyanoptera) teal were studied during the breeding seasons of 1975 and 1976 in eastern Washington. Time budgets were similar between the two species. Females fed and rested relatively more than males and spent less time in locomotion, alert postures, and social interactions. Blue-winged Teal were slightly, but consistently, more likely than Cinnamon Teal to feed in open water. Feeding methods overlapped substantially between the two species and varied greatly among habitat types and study ponds. Male Blue-winged Teal were more aggressive than male Cinnamon Teal in both intra- and interspecific social interactions.

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