ML 59690

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Mottled Owl -- Ciccaba virgata More
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Playback Self
 

call

song

 

Response to playback: Approach. Response to playback: Different song.  

Paul A Schwartz
15 Mar 1965 at 19:00

    Geography
  • Venezuela
    Aragua
    Locality
  • Rancho Grande; km 30
    Latitude/Longitude
  • 10.3666667   -67.6833333
    Elevation
  • 800 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 # 5. Bulk reel: 64; Extra cut length: 3:00Time: 1900 hours to 1930 hours.a) Natural song. Pair heard (hoot song). Quality: 3. Level: 6.b ) Pair now closer after playback of a); note that one bird's voice is higher pitched than other. Quality: 2. Level: 5.After more playback of the bird with the higher voice, now "screams" instead of hooting; the other continues to hoot. Quality: 1-2. Level: 4.After a while the "screaming" bird moves farther away.7:30 PM to 8:00 PM. A continuation but with hoots a better gain. Also @ end the "screams" (still in background) are different, at a lower frequency.8:00 PM - 8:15 PM - Continuation of above. This part has the best gain on the hoots with lowest background level (Bell frogs). Quality: 1. Level: 4.

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