Response to playback: Approach. Response to playback: Normal song. Response to playback: Different song.
Curtis A Marantz
16 Feb 2001
- Usina Serra Grande, Engenho Coimbra
- -9.0033333 -35.8422222
- 396 meters
- Evergreen Forest
- NAGRA 4.2
- Sennheiser MKH 20
- Roche Parabola 74cm/17.7cm (29.1in/7in)
NOTES: Apparently two unseen birds were about 20 meters away and 15 meters up in mid-levels of trees on slope above road; there was a mixed-species flock nearby; in response to playback, these birds flew around and gave the same calls but also the Òdua dua duaÓ song; partly cloudy, mild breeze, 87¡ F.