ML 59641

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Spectacled Owl -- Pulsatrix perspicillata More
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Natural
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song

 

 

Paul A Schwartz
8 Oct 1965 at 00:00

    Geography
  • Venezuela
    Aragua
    Locality
  • Ocumare de la Costa; Vieja Carretera
    Latitude/Longitude
  • 10.4666667   -67.7666667
    Elevation
  • 40 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 # 7. Bulk reel: 58; Extra cut length: 4:40 BStream hiss in background throughout.a) 10:30 PM. Two pairs of these owls seemed to be participating in a natural song duet. Note that with each pair (one in background and one in foreground) one bird has a higher and one a lower voice. This duet had been going on for a long time before I found a spot close to the birds. Quality: 2. Level: +5.Then further recording after playback; first focused on the higher-voiced bird, then ~ between them. Quality: 1-2. Level: +5.b) 11:30 PM. I then shot at the high-voiced bird but apparently missed as was far away. Anyway, I saw the bird fly away. About an hour later and after more playback, a pair started singing in same place. I believe it is the same pair. Quality: 1-2. Level: +5.c) Further recording of the high-voiced bird of this pair most prominent. The parabola is intentionally slightly "off-focus" to reduce distortion (emphasis of high frequencies). Also heard are the low-voiced bird of this pair and another high-voiced bird in background.The high-voiced bird was then collected and proved to be a female.The recording concludes with the low-voiced bird that was left: first, right after collecting the other bird, and then about an hour later. During most of this interim it was silent.

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