Chris Merkord Posted January 29, 2013 Share Posted January 29, 2013 OnEarth Magazine (blog) City Birds Bring the Noise OnEarth Magazine (blog) Researchers at the Max Planck Institute for Ornithology found that common blackbirds in Vienna sing louder than their crooning counterparts in the woods outside the city, concluding that high-pitched songs are just a convenient side effect of the birds ... View the full article Link to comment Share on other sites More sharing options...
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