The following item may be of some interest to the ornithologists
Regards, Laurie.
http://www.sciencemag.org/cgi/content/full/318/5851/765
Video Cameras on Wild Birds
Christian Rutz, *Lucas A. Bluff, Alex A. S. Weir, Alex Kacelnik
Science 2 November 2007: Vol. 318. no. 5851, p. 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 tracking has potential for studying the behavior and ecology of
many other bird species that are shy or live in inaccessible habitats.
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