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Color Preference in the Mexican Violet-Eared Hummingbird, Calibri T. Thalassinus (Swainson) 1)

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1. An experimental design involving three variables of color, position of feeding bottle, and time of day, was devised to test the hypothesis that the hummingbirds prefer red as a food source. 2. A single female Mexican violet-eared hummingbird was used as the. subject. 3. Of the four colors tested, (red, green, blue, and yellow), yellow was chosen less frequently than any other color. This difference was statistically significant. There were no significant preference differences among the red, blue or green bottles. 4. The bottle nearest the cage front and the favorite perch was significantly preferred regardless of its color. 5. Preferences during the A.M. periods were more pronounced than during the evening feeding hours. 6. A procedure for further work on this problem is suggested.

Affiliations: 1: Behavior Research Fellows, N. Y. Zoological Society


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