Satin bowerbird displays are not extremely costly

Article Abstract:

Satin bowerbird displays are not as expensive as general assumptions. The hypothesis involving the costliness of displays predicts high male mortality levels. The lack of evidence for high male mortality, very costly display and an inverse relationship between display size and male mortality contradicts this hypothesis. Alternative explanations such as traits acquired with experience can also build honest advertising without high cost.

Analysis, Behavior, Display behavior in animals, Animal display behavior

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An inverse relationship between decoration and food colour preferences in satin bowerbirds does not support the sensory drive hypothesis

Article Abstract:

A study conducted to analyze the impact of colour in food objects and the bowerbird's food colour preferences is discussed.

Food and nutrition, Food habits

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Ornament colour selection, visual contrast and the shape of colour preference functions in great bowerbirds, Chlamydera nuchalis

Article Abstract:

The effects of color of the bower and male plumage on female great bowerbird's mate selection are analyzed.

Australia, Sexual behavior, Influence, Mate selection, Camouflage (Biology)

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