Avian species rely heavily on vision to provide them with necessary information about their surroundings. Chickens rely on their sense of vision to recognize: Other chickens. Predators. Another chicken's intentions (which allows birds to avoid unwanted aggression). Location of resources, such as food and water. Although there is evidence that domestication has weakened a chicken's sense...
Very nice explanation.
Can you add something about extra retinal perception of light in poultry? It's very interesting and probably not investigated completely.
Kind regards
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