Reports

Search Image Formation in the Blue Jay (Cyanocitta cristata)

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Science  22 Jun 1979:
Vol. 204, Issue 4399, pp. 1332-1333
DOI: 10.1126/science.204.4399.1332

Abstract

Blue jays trained to detect Catocala moths in slides were exposed to two types of slide series containing these moths: series of one species and series of two species intermixed. In one-species series, detection ability increased with successive encounters with one prey type. No similar effect occurred in two-species series. These results are a direct demonstration of a specific search image.

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