Video cameras on wild birds.

@article{Rutz2007VideoCO,
  title={Video cameras on wild birds.},
  author={Christian Rutz and Lucas A. Bluff and Alex A. S. Weir and Alex Kacelnik},
  journal={Science},
  year={2007},
  volume={318 5851},
  pages={765}
}
New Caledonian crows (Corvus moneduloides) are renowned for using tools for extractive foraging, but the ecological context of this unusual behavior is largely unknown. We developed miniaturized, animal-borne video cameras to record the undisturbed behavior and foraging ecology of wild, free-ranging crows. Our video recordings enabled an estimate of the species' natural foraging efficiency and revealed that tool use, and choice of tool materials, are more diverse than previously thought. Video… CONTINUE READING
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