Paul A Schwartz
19 Jul 1972
- Boqueron; Sector Hacienda La Encantada
- 8.83 -68.92
- 420 meters
- NAGRA UNSPECIFIED IV
- Sennheiser MKH 405
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 31. Bulk reel: 167
Weather: Fair. One natural song. Quality: 1. Level: -3, 0. 203 tape. LN.
After playback, two birds respond & sing (the pair); then only one bird sings.
The bird that responded persistently to playback (it is also the one that sang alone) was collected for a skeleton specimen: it proved to be the male.