Reports

"Imprinting" in Nature

Science  08 Feb 1963:
Vol. 139, Issue 3554, pp. 497-498
DOI: 10.1126/science.139.3554.497

Abstract

Much laboratory research is based on the assumption that the learning of parental characteristics by young nidifugous birds is rooted on visual factors. Naturalistic observations of ground- and hole-nesting duck species, augmented by sound amplification equipment, indicate that hatchlings are exposed to the call of their mother for a relatively long period before they are exposed to the sight of her.

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