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Song experiments reveal 21 possible new tropical bird species


ScienceDaily

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Birds often choose their mates based on song, making it a key factor in separating species. However, analyzing spectrograms can only tell us so much -- the characteristics that birds hone in on when identifying potential mates may not be the same ones scientists notice in audio recordings. A new study uses field experiments to 'ask the birds themselves' and uncovers as many as 21 previously unrecognized species.Eu2sFif8YYg

 

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