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Related Experiment Video

Updated: Jul 11, 2026

A Video Surveillance System to Monitor Breeding Colonies of Common Terns (Sterna Hirundo)

A Video Surveillance System to Monitor Breeding Colonies of Common Terns (Sterna Hirundo)

Published on: July 22, 2018

Video cameras on wild birds.

Christian Rutz¹, Lucas A Bluff, Alex A S Weir

¹Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK. christian.rutz@zoo.ox.ac.uk

Science (New York, N.Y.)

|October 6, 2007

Summary

New Caledonian crows use diverse tools for foraging, revealing more about their behavior. This study used innovative video cameras to observe wild crows, offering insights into tool use in avian species.

Area of Science:

Ornithology
Animal Behavior
Ecology

Background:

New Caledonian crows (Corvus moneduloides) are known for tool use in foraging.
The ecological context and diversity of this behavior remain largely unstudied.

Purpose of the Study:

To investigate the foraging ecology and tool use of wild New Caledonian crows.
To document the diversity of tool materials and usage in their natural habitat.

Main Methods:

Development and deployment of miniaturized, animal-borne video cameras.
Recording undisturbed behavior and foraging activities of free-ranging crows.

Main Results:

Estimation of natural foraging efficiency in the species.

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Observation of a more diverse range of tool use and material selection than previously documented.

Demonstration of video tracking's potential for studying elusive bird species.

Conclusions:

Tool use in New Caledonian crows is more varied than previously understood.
Animal-borne video technology is effective for ecological and behavioral studies of shy or inaccessible species.