Ultraviolet vision and band-colour preferences in female zebra finches, Taeniopygia guttata

Article Abstract:

It has been shown that the sexual preferences of female zebra finches areinfluenced by colour, either artificial or natural. However, these results have not been replicated. A new study examines colour preferences of female zebra finches and demonstrates that they may fail to exhibit this behaviour if ultraviolet light is removed. The lack of colour preference could be due to a change in the male's overall appearance, caused by the use of ultraviolet light filters. The new study highlights the importance of properly considering animals' sensory capabilities in experimental design.

Zebra finch, Color of birds, Bird coloration

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Song, sexual selection, starvation and strategic handicaps

Article Abstract:

An analysis of the song routine of the male bird to attract females reveals that too much time spent in singing results in starvation, as the male divides his time between singing and feeding. The female's response to the songs depends on the time of the day. The female discriminates between high quality and low quality male by demanding harder task from a male and by using choice rules based on song output.

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Behavioural and physiological effects of absence of ultraviolet wavelengths for domestic chicks

Article Abstract:

A new study investigates the long-term physiological and behavioural effects on chicks, Gallus gallus domesticus, of the absence of ultra-violet wavelengths.

Ultraviolet radiation, Galliformes

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