Manufacture and use of hook-tools by New Caledonian crows (original) (raw)

Nature volume 379, pages 249–251 (1996)Cite this article

Abstract

TOOL behaviour in wild birds has been described as mostly stereotyped1,2, and tool manufacture involves little modification of material3–5. Here I report in New Caledonian crows Corvus moneduloides the manufacture and use of two different types of hook tool to aid prey capture: hooked-twig and stepped-cut barbed pandanus leaf. Crow tool manufacture had three features new to tool use in free-living nonhumans: a high degree of standardization, distinctly discrete tool types with definite imposition of form in tool shaping, and the use of hooks. These features only first appeared in the stone6 and bone7 tool-using cultures of early humans after the Lower Palaeolithic6,7, which indicates that crows have achieved a considerable technical capability in their tool manufacture and use.

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Authors and Affiliations

  1. Department of Ecology, Massey University, Private Bag 11222, Palmerston North, New Zealand
    Gavin R. Hunt

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Hunt, G. Manufacture and use of hook-tools by New Caledonian crows.Nature 379, 249–251 (1996). https://doi.org/10.1038/379249a0

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