Vocal responses of Hermit Thrush (Catharus guttatus) males to territorial playback of conspecific song

To better understand the use of birdsong in territorial defence, vocal responses to conspecific song playback were assessed in Hermit Thrush Catharus guttatus males. Subjects avoided both overlapping and frequency matching the playback songs. In addition, during playback, males performed abridged ve...

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Bibliographic Details
Published inIbis (London, England) Vol. 164; no. 3; pp. 793 - 799
Main Authors DeMerchant, Kendra, Roach, Sean P.
Format Journal Article
LanguageEnglish
Published Oxford Blackwell Publishing Ltd 01.07.2022
Subjects
abridged song
acoustics
aggression
birdsong
Catharus
Catharus guttatus
conspecificity
Males
Matching
overlapping
Playback
Song
territoriality
vocalization
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Summary:To better understand the use of birdsong in territorial defence, vocal responses to conspecific song playback were assessed in Hermit Thrush Catharus guttatus males. Subjects avoided both overlapping and frequency matching the playback songs. In addition, during playback, males performed abridged versions of their songs that lacked introductory notes. Overlapping and matching avoidance, as well as the use of abridged songs, may reflect subjects’ efforts to maximize signal efficiency and avoid acoustic interference, even while actively engaged in territorial defence. Future work will explore that possibility, especially with respect to the use and function of abridged songs.
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ISSN:0019-1019
1474-919X
DOI:10.1111/ibi.13044