A Statistical Analysis of Blackbird Aggressiveness
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Citation:The Ohio Journal of Science. v69 n1 (January, 1969), 58-62
scale with a reliability of 0.82 was developed for rating an avian behavior pattern tentatively identified as aggressiveness. The scale was applied to wild birds held in the hand and threatened in a standardized fashion. Individual differences in aggressiveness were demonstrated for Brown-headed Cowbirds and Common Grackles. Correlation between two ratings of the same bird was 0.53 for Grackles and 0.79 for Cowbirds. The most aggressive species of those studied were Grackles and Cowbirds and the least aggressive were Red-winged Blackbirds and Starlings
Author Institution: Department of Psychology and Department of Zoology, Ohio State University, Columbus, Ohio
Rights:Reproduction of articles for non-commercial educational or research use granted without request if credit to The Ohio State University and The Ohio Academy of Science is given.
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