As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Friday, 7 March 2014

Birdsong is not all about sexual selection: Female birds sing much more often than previously thought

Date:
March 5, 2014

Source:
Leiden, Universiteit

Summary:
In 71 percent of all songbird species with available data, the female sings, too. This is remarkable because in the wake of Darwin’s theory of evolution, birdsong has generally been seen as a characteristic of male birds, allowing them to compete with other males and attract females. The exciting question now is how females apparently repeatedly lost their song in the course of evolution. Why did they stop singing in some lineages, but not in others?


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