A pair of Barred Antshrikes (Thamnophilus doliatus) perched near their nest in French Guiana. Pairs of antshrikes perform vocal duets to defend their territories against rivals. Results of a playback experiment reveal that territorial antshrikes respond more aggressively to duets presented through stereo loudspeakers compared to a single loudspeaker, and that both the male and female display equivalent responses to same–sex and opposite–sex rivals.Photo reproduced by permission of Michel Giraud–Audine.


No abstract is available for this article.

Ancillary