Paul A Schwartz
1 May 1965
- Rancho Grande; below km 36+
- 10.37 -67.68
- 300 meters
- NAGRA III
- Electro-Voice 650
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 5. Bulk reel: 237
a) Two natural songs. This was the end of a longer session. Quality: 1. Level: 0.
b) After just one playback bird sang again, now the full cycle. Note that starts at higher pitch. (Slight print-through.) Quality: 1. Level: 0.
c) This is after playback of 5b). Note how much higher the frequency of this new song is. Also, the bird's voice breaks into a "falsetto," no doubt due to stress. The song is carried to the full cycle but I didn't record last part continuously. (Some print through, with 138 tape!!!) Quality: 1. Level: 0.