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Bird song changes sound alarm over habitat fragmentation

neighbours is common in birds, and is thought to act as a threat signal between males, which would explain why birds have evolved such complex song repertoires.

The Dupont's lark is a rare and specialised steppe passerine, and its song unit is made up of up to 11 discrete sequences, each sequence being composed of up to 13 notes. The most common sequence is known as the 'whee-ur-wheeee'. To be considered as shared songs in this study, two sequences had to match at least 75% of their component notes and the matching portions had to be similar in note shape, timing and frequency.


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Contact: Lynne Miller
lynne.miller@oxon.blackwellpublishing.com
186-547-6273
Blackwell Publishing Ltd.
30-Nov-2005


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