ML 59167

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Lined Forest-Falcon -- Micrastur gilvicollis More
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Natural
Same Species
 

song

 

Response to playback: No response.  

Variable Chachalaca -- Ortalis motmot
Blue-black Grosbeak -- Cyanocompsa cyanoides

Paul A Schwartz
14 Nov 1971 at 00:00

    Geography
  • Brazil
    Amazonas
    Locality
  • Manaus; Reserva Ducke
    Latitude/Longitude
  • -3.1333333   -60.0333333
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA UNSPECIFIED IV
    Microphones
  • Sennheiser MKH 405
    Accessories
  • Parabola 61cm (24in)
    Equipment Note

NOTES: Neotropical Institute Cut # 16. Bulk reel: 37
203 tape.
*Birds not seen but the song is so typical that I think there is no question about identification.
Two-figure succession (some heard faintly at end of Cut 52 of M. ruficollis and some had been heard a few minutes before that, all quite distant. Quality: 3. Level: +5.
During few minutes lapse while I tried to move closer, song changed (or maybe another bird). (I think it's probably the same.) Recorded part begins with three-figure phrases but then four-figure phrases are mixed in. Quality: 2-3. Level: +5. Quality: 2. Level: +5.
Then after a few minutes (in real time) two birds are heard. This may be a conflict or it may be a male-female duet. Quality: 2-3. Level: +5. Quality: 2. Level: +5.
Note: A few minutes after above song ended I played two times the "field tape" of M. gilvicollis. This brought no apparent reactioin; birds were heard singing farther away (maybe they didn't hear the playback or maybe they moved away). Also tried female M. ruficollis tape with no reaction.

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