ML 61753

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Blackish-gray Antshrike -- Thamnophilus nigrocinereus More
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call

 

 

Paul A Schwartz
14 Feb 1972 at 06:45

    Geography
  • Venezuela
    Amazonas
    Locality
  • 10.0 km S of San Carlos; Rio Negro frente a la Isla Cigarron
    Latitude/Longitude
  • 1.75   -67.0
    Elevation
  • 100 meters
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA UNSPECIFIED IV
    Microphones
  • Sennheiser MKH 405
    Accessories
  • Parabola 91.4cm (36in)
    Equipment Note

NOTES: Neotropical Institute Cut # 4. Bulk reel: 110
*This identification is not certain. See also Cut 1.
a) Some nasal calls. These are at a much lower pitch than the calls in Cut 1. I don't know if both of these are given by this species, or even if either one is. In the background of the present cut are some higher-pitched calls like those of Cut 1); they may be of Cercomacra cinerascens; but in all my recordings of that species I have no calls like these, all being quite different. Quality: 1-2. Level: +3. 203 tape.
b) The focus is now on the higher-pitched background calls. Until definite identification, they are filed here. *Identification not certain; probably not correct. Quality: 1-2. Level: +3. 203 tape.
Note: YES!! There are similar calls in cut 9b of that species. Cf. comment there.

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