Zoology Seminars

Presented by the Department of Zoology & the Graduate School, University
of Washington

All seminars take place 4.30pm
132 Hitchcock (refreshments 4.15)


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Tues., March 16, 1999

Dr Daniel Osorio
School of Biological Sciences
University of Sussex
Brighton, UK

Bird color vision

Birds have five separate types of cone photoreceptor, and may use color in
different ways from humans. I study how domestic chicks use color for
recognising food, and find that they are probably tetrachomatic. I then
describe how they generalise from familiar to novel stimuli, and give
evidence that they can learn from multiple examples to form color
categories. This behavioural work suggests how birds use color and
pattern for communication - for example in mate choice.

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