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Part of Professor Tinbergen’s research into the habits of the lesser black-backed gull, a huge colony of which was filmed on the north-east coast of England, the film demonstrates the part played by social...
Identifies the main British species of gull: kittewakes, greater black-backed, lesser black-backed, herring, common and black-headed gulls. Shows how by adaptability and versatility they profit from man, and...
Stresses the development of behavioural categories in response to different research questions. Compares pencil and paper recording with keyboarding, and compares pairs of records to show inter-observer...
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