ML 67901

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Band-tailed Guan -- Penelope argyrotis More
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Note

 

 

 

call

mechanical sound

court

 

 

Paul A Schwartz
6 Jul 1969 at 00:00

    Geography
  • Venezuela
    Aragua
    Locality
  • Rancho Grande; carretero ~ km 21+ (by 1972 markings EK-19-)
    Latitude/Longitude
  • 10.3666667   -67.6833333
    Elevation
  • 1150 meters
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA III
    Microphones
  • Electro-Voice 650
    Accessories
  • Parabola 91.4cm (36in)
    Equipment Note

NOTES: Neotropical Institute Cut # 45. Bulk reel: 380; Extra cut length: 4:41Site of observations now @ this new location. When I arrived @ 5:40 AM a bird up on hill was giving +/- quiet "ao" calls but it fell silent while I set up equipment. Then another, or maybe the same, began giving loud "ao" calls in a tone indicating probable "excitement" (recorded). Quality: 2. Level: 0. 131 (transp.) tape. 7.5 ips.The bird then planed across road, apparently without meeting another (its mate) and began giving "ao" calls. Voice note says that a bird flew up from the "lower side" of road (to which Bird #1 had planed) to a perch quite high in a tree to near where Bird #1 had landed. It is then that Bird #1 began giving the "courtship grunts." Whether the "ao" calls or the subsequent quiet whines were the "call" to the note (= Bird #2) is not clear. At one point Bird #2 spread tail fan-wise; then #1 moved slightly farther away along limb and began the series-whistles, then eventually gave the display.Later notes indicate that there were five birds present: two adults, two well-grown young, and another bird apparently adult that was apparently not with these on lower side of road but was apparently on upper side road. A conflict situation apparently then developed. Then whines, then "courtship grunts (growls)." Shortly the "mate" is heard, too, but it seems there may be a third bird present! Then "senior whistler" heard; these become separated by long periods of silence, then bird gives a flight display. Note: Display began directly from "take-off" with no preliminary planing. Last part of display seen and wing beats very deep and vigorous. The bird then planed to a landing. Quality: 2. Level: 0.6:05 AM @ [illegible abbreviated word]. The recording then continues on a copy from the original tape, made @ 3 3/4 ips to save space, giving voice notes of occurrences, etc. leading up to the foregoing recording; then after it. Then the subsequent conflict situation is also recorded.Quality: 2. Level: 0. Tape speed: 3.75 ips. 139 (not "transpar.) tape.Note: 7 July - same place; calling and displays (total of three heard) but birds a little farther up the hill and recordings were not made.

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