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.

Sunday, 1 March 2015

Neighboring birds sing 'out of tune'

Date:
February 18, 2015

Source:
PLOS


Geat tits living next to each other may sing their songs at significantly different rates, more or less frequently, as compared to non-neighboring birds, according to a study published February 18, 2015 in the open-access journal PLOS ONE by Lysanne Snijders from Wageningen University, Netherlands and colleagues.

Great tits are territorial and use their song to signal their territory to unfamiliar potential competitors and familiar neighbors, where boundaries have likely already been established. To investigate how signal traits vary in relation to the overall social environment, the authors of this study tested whether neighboring birds sharing a territory boundary, rather than birds just flying in the area, is related to similarity in dawn song traits between territorial wild great tits.

Researchers collected song recordings from over 70 unique male great tits at dawn, during the breeding season, and compared songs between neighbors and non-neighbors.

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