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|Monday 11th March 2013, 14:52||#1|
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Join Date: Sep 2005
City Bird Limits
City noise from traffic is affecting how bird song appears to female birds, which could impact on breeding levels.
Full article here.
The rising level of noise in urban areas may be preventing some species of songbirds from setting up home in developed areas, a study has concluded.
Canadian researchers found that noisy surroundings masked the lower frequencies of bird songs, affecting the way some species communicated.
Unable to hear all elements of a song, females could perceive singing males as ill-suited mates, they added.
The findings have been published in the Global Change Biology journal.
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