ML 86594

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Long-billed Thrasher -- Toxostoma longirostre More
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Northern Pygmy-Owl -- Glaucidium gnoma
Eastern Screech-Owl -- Megascops asio

Andres M Sada
15 Sep 1992 at 00:00

    Geography
  • Mexico
    Nuevo León
    Locality
  • Rancho Picachos, About 40-50 Km Ne Of Monterrey
    Latitude/Longitude
  • 26.2   -99.9833333
    Elevation
  • 710 meters
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • PANASONIC SV 255
    Microphones
  • Sennheiser MKH 60
    Accessories
    Equipment Note

NOTES: LNS- High-pass filter at 220 Hz. Recordist- Recording almost continually from 5:45 AM till 6:10 AM (sunrise at 6:25, although actually later at this location because of mountains). The mike was moved in an arch of about 120¡ depending on where the loudest sound was coming from. The hum comes from the mike being too close to the recorder at times. The most obvious species are Otus asio, Glaucidium gnoma, Toxostoma longirostre. The temp was about 65-70¡F. The sky was clear and no wind. [This recording appears to contain a variety of calls by this species (among other things). Most of the earlier calls may represent the "Toe-ree" call of BNA (e.g., 0:07, 0:11, 0:14, 0:18...), if indeed given by this species. Many of the calls heard later were certainly given by this species and they represent the "Tsuck" Call of BNA (0:25, 0:265, 0:30, 0:35...). The "churr" calls may also have been given by this species (0:055, 0:10, 0:13...), if so, probably representing the "Verr" of BNA, but somewhat different than those in LNS #96358. Quality changed from "3 mdm" to 3-2 - CAM - 10 November 2005]

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