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Reed warblers discriminate cuckoos from sparrowhawks with graded alarm signals that attract mates and neighbours |
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| Authors: | JA Welbergen NB Davies |
| Institution: | Department of Zoology, University of Cambridge, U.K. |
| Abstract: | |
| Keywords: | Accipiter nisus Acrocephalus scirpaceus brood parasitism Cuculus canorus discrimination mobbing nest defence reed warbler sparrowhawk |
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