Paul A Schwartz
19 Jul 1972
- Baqueron; Sector La Encantada
- 8.83 -68.92
- 420 meters
- NAGRA UNSPECIFIED IV
- Sennheiser MKH 405
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 19. Bulk reel: 239.
Weather: Cloudy, fair. Two-figure song, recorded a long time after whistled imitation. Quality: 1 (frog background). Level: +3. 175 tape. Std.
Field note re: display: Bird moves alulas forward, somewhat like Dromococcyx pavoninus, but either directly forward or with one or two movements, then holds them pointed forward quite conspicuously and turns/sways the body slowly from side to side.
D. pavoninus jerks the alulas forward in a series of steps to the outermost position and does not, as I recall, sway the body.
An observation at Punta Palmita, Lake Valencia, 11/V/73, indicated that a bird, probably a male, reacted to the female song of the male-female duet by flying back and forth and when perched it pointed the alulas straight forward and held them there; the black alulas stand out conspicuously against the light bird.