Paul A Schwartz
11 Sep 1965
- 10.45 -67.85
- 300 meters
- NAGRA III
- Electro-Voice 650
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 10. Bulk reel: 40
a) Natural song. Another bird is heard in the background and note that its voice is slightly higher. Quality: 1. Level: +5.
b) After playback of a). (The higher-voiced bird in background could not be attracted.) Note that the song now sounds more "forced" and is @ slightly higher pitch, corresponding ~ to that in background. However toward end it again seems more "normal." Quality: 1. Level: +5.
This bird was collected (male).