Sound stimulation was (other): playback recording of song. Response to playback: Approach. Response to playback: Normal song. Response to playback: Different song.
Curtis A Marantz
13 Sep 1998
- Floresta Nacional de Caxiuana; Estacao Cientifica Ferreira Penna
- -1.7375 -51.4555556
- Evergreen Forest
- HHB PORTADAT PDR 1000
- Sennheiser MKH 20
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: HHb filters in cut position; attenuators off on both recorder and microphone; ca. 300 meters S of Principal Trail off Trail T and to west in ravine/dry streambed lined with riparian/wetland vegetation; unseen; after playback of prerecorded song and its own calls by Mario Cohn-Haft; bird was in dense undergrowth; response was a weak approach, calls, and a few songs; partly cloudy, calm, 78-80¡F.