Red coloration has been associated with dominance and aggression in a number of animals. However, it is unclear whether the increased aggression of red individuals or the avoidance of red opponents is an intrinsic or learnt response. By experimentally controlling for genetic and environmental effects, I tested for innate competitive differences and red-enhanced contest success in sexually immature (uncoloured) red and black head colour morphs of the Gouldian finch, Erythrura gouldiae. Despite...[Show more]
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