Colour preferences and colour vision in poultry chicks.

  title={Colour preferences and colour vision in poultry chicks.},
  author={A. van den Ham and D. Osorio},
  journal={Proceedings. Biological sciences},
  volume={274 1621},
The dramatic colours of biological communication signals raise questions about how animals perceive suprathreshold colour differences, and there are long-standing questions about colour preferences and colour categorization by non-human species. This study investigates preferences of foraging poultry chicks (Gallus gallus) as they peck at coloured objects. Work on colour recognition often deals with responses to monochromatic lights and how animals divide the spectrum. We used complementary… CONTINUE READING

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