Paul A Schwartz
21 Jun 1973
- 12.0 km SW of Las Adjuntas; "El Retumbo"
- 7.6 -64.27
- 230 meters
- NAGRA UNSPECIFIED IV
- Sennheiser MKH 405
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 10. Bulk reel: 238. 203 tape. Low noise.
This is very probably song by a female. In it the individual figures (notes) are more drawn out and the whole @ a slightly higher pitch than the homologous male phrase, which can also be heard in this recording. Quality: 2-3. Level: +5. 203 tape. Low noise.
Note re: Cut 10). With the bird still sitting on the perch from which it sang part d), I played back the second two sessions of part d). The bird flew across the road and before I'd finished playing it, flew back again to a perch near the previous one and ~ 2 m above the ground, in full view, although mostly facing the other way. It then began the session of part e. This is the first time today the bird has flown back and forth in reaction to playback and also the first time it developed the full song. It did not use the alulas.
After bird became quiet, I tried whistling the songs of both male and female D. pavoninus. Although the bird looked around at the beginning of each song type it showed no real interest nor any reaction.
After this I waited ~ 1/2 hour, then tried playback, using everything recorded, but was unable to get any reaction from the bird (~ 2:30 PM).
Field Note: PM of 23/VI/73. I heard the presumed female song (in app. duet with male).
AM of 24/VI/73. I heard the presumed female song; this song is slightly different from the terminal phrases of a fully developed male song, being more drawn out (a noted before) and probably @ a slightly higher pitch, although I didn't note this in the field.