Paul A Schwartz
7 Mar 1970
- near La Azulita
- 8.72 -71.45
- 1500 meters
- NAGRA UNSPECIFIED IV
- Electro-Voice 650
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 11. Bulk reel: 55
Owls started singing ~ 10:30 PM and I began whistling imitation. Owls responded:
1) Two owls sing type B song. Quality: 2-3. Level: 0. 3.75 ips. Copied from original @ 7.5 & filt. 250/2.5 kHz.
Focus changes to one directly overhead. Quality: 1-2. Level: 0.
Then same bird apparently, now on a perch a little farther away, sings type A song. Quality: 2. Level: 0.
Then after playback of that, the bird, a little closer, sings type A song. Quality: 1-2. Level: 0.
This then continues with copy @ 7.5. Quality: 1-2. Level: 0.
Then some time after playback of the last part, bird sings type B song. (The last two songs repeated filtered 200/6 kHz.) Quality: 1-2. Level: 0. 7.5 ips.
Note: I heard three or four individuals in this area. The species seemed more active in this site than up at the 1800 m. site.
20/III/70 - No active song at 1500 m. in spite of clear sky and moon. One aroused by playback but did not react strongly.
21/III/70 - At 1400 m., no O. ingens but O. choliba sang.