Gavin R. Hunt, Michael C. Corballis, Russell D. Gray
Nature 414, 707 (2001)
The tool held in the beak of the bird shown in Fig. 1 of this communication was wrongly described as a crochet tool, whereas it is a simple leaf-stem tool that happens to be hooked.
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The online version of the original article can be found at 10.1038/414707a
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Erratum: Laterality in tool manufacture by crows. Nature 415, 602 (2002). https://doi.org/10.1038/415602c
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DOI: https://doi.org/10.1038/415602c
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