Some Aspects of Grackle Feeding Behavior in Newly Planted Corn

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Abstract
Observations were made of 237 common grackles (Quiscalus quiscula) in newly planted and sprouted corn to describe and quantify aspects of feeding behavior and to determine the effects of repellent-treated corn on feeding behavior. Observations of grackles that ate corn totaled 122. Birds consumed sprouted seeds more rapidly than unsprouted seeds and dropped more unsprouted seeds than sprouted seeds. No differences were detected in the immediate response to repellent-treated seed (time to consume or proportion dropped). Possibly the birds learned to completely avoid treated seed but were not averse to entering the treated area.

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