perform visual display
Paul A Schwartz
- above La Azulita
- 8.72 -71.45
- 1800 meters
- NAGRA UNSPECIFIED MODEL
- Parabola 91.4cm (36in)
NOTES: Neotropical Institute Cut # 54. Bulk reel: 382.
a) 2 Mar 1970. 6:30 AM 2 Mar 1970. Weather: Fair. The present recording presents three "wing-whir" displays as example from this area. Additional examples (slightly "louder" but intensified by calls) are in cut 62 of Micrastur ruficollis. See also end of cut 3 of Catharus fuscater. Nagra III recorder; EV 650 microphone. Tape speed 3.75 ips. Copied on N-4.2 from orig. @ 7.5 & filt. 200/6 kHz.
b) 3 Mar 1970. 6:40 AM. Weather: Cloudy. Conflict vocalizations and "ao" calls; kept for sample from this area. (Also heard prominently are some phrases by Lurocalis [semitorquatus] rufiventris. Nagra IV; Senn. 405. 3.75 ips. Copied on N-4.2 from orig. @ 7.5 & filt. 200/6 kHz.
Quality: 3. Level: +3.
Note: I arrived back in Rancho Grande 24/III/70. The weather was typical dry season. In a couple dawn visits to the "Pica de la Toma" I found very little guan activity: some displays but little or no "ao" calling, although I heard some "crows." There was then a hard rain 8/IV/70.
9/IV @ dawn there were many displays but very little "ao" calling.
10/IV I arrived @ Km 28 @ 5:45 AM and noted displays on all sides, apparently territorially spotted around, but no "ao" calling heard up to ~ 6:10 AM by which time the displays had ceased.
My camp was @ 1800 m. To the east of me the slope rose sharply up the NW side of the Andes. While the recorder was running to obtain vocalizations of Lurocalis [semitorquatus] rufiventris the parabola was pointed up toward that slope. In Cut 3) of the nighthawk at beginning can hear calling by Penelope montagnii and at one place apparently a wing-whir display. A little later can be heard a wing-whir display by P. argyrotis. This apparently came from about my elevation, while the P. montagnii were apparently up @ ~ 2000-2100 m. Actually, P. argyrotis was displaying on all sides of me, although none close, but I heard no calls from them. Some later wing-whir displays by P. argyrotis are here filled for the record.
The next morning there was active calling down at my level but not close to me (although the evening before the birds were in the trees next to my camp).