RED-EYED VIREOS HAVE DIFFICULTY RECOGNIZING INDIVIDUAL NEIGHBORS SONGS

Authors
Citation
R. Godard, RED-EYED VIREOS HAVE DIFFICULTY RECOGNIZING INDIVIDUAL NEIGHBORS SONGS, The Auk, 110(4), 1993, pp. 857-862
Citations number
32
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Ornithology
Journal title
ISSN journal
0004-8038
Volume
110
Issue
4
Year of publication
1993
Pages
857 - 862
Database
ISI
SICI code
0004-8038(1993)110:4<857:RVHDRI>2.0.ZU;2-O
Abstract
I investigated recognition of individual neighbors' songs in a migrato ry species with large repertoires, the Red-eyed Vireo (Vireo olivaceou s). To test for abilities to recognize individual neighbors, I measure d responses to playbacks of neighbors' songs from appropriate and inap propriate boundaries in two different years. Because the responses to the two types of playbacks were not statistically different in either year, I concluded that Red-eyed Vireos have difficulty recognizing the ir neighbors by song. If recognition of neighbors serves to reduce ene rgy expended in territorial defense during the breeding season, a larg e repertoire could be costly to male Red-eyed Vireos.