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.

Monday, 24 August 2015

Persist and shout: Male bluebirds alter songs to be heard over increased acoustic noise

Research shows birds 'shout' to be heard over noise produced by human-made activity

Date: August 21, 2015

Source: University of Exeter

Summary: Birds 'shout' to be heard over the noise produced by human-made activity, new research has shown. Researchers recorded songs produced by 32 male bluebirds, and analysed two from each male -- those produced during the quietest and loudest period of ambient noise -- to investigate whether males changes their songs between these two conditions


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