ML 8076

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Cave Swallow -- Petrochelidon fulva More
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Northern Mockingbird -- Mimus polyglottos
Eastern Screech-Owl -- Megascops asio
Mourning Dove -- Zenaida macroura

Robert C Stein
Robert B Angstadt
27 Apr 1961 at 06:00

    Geography
  • United States
    Texas
    Locality
  • 14.4 km NE of ROCK SPRINGS; 'DEVIL'S SINKHOLE'
No locations found with lat/long
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA III-B
    Microphones
  • AKG Unspecified
    Accessories
  • Parabola 101.6cm (40in)
    Equipment Note

NOTES: LIMESTONE CAVERN. NOISE OF BIRDS EMERGING FROM CAVE AND FLYING OVER CAVE. AT LEAST ONE THOUSAND BIRDS WERE IN FLOCK WHICH CIRCLED. THE FLOCK DIMINISHED IN SIZE AS THE MORNING PROGRESSED, AND THE LATTER PORTION OF THE RECORDING CONTAINS FEWER BIRDS. Sex: 1000 UNKNOWN BEST TOWARD BEGINNING, LAST PART VERY LOW.

[There are too many birds here to differentiate many of the vocalizations, but most of this appears to represent the clear "weet" or "cheweet" chatter described in BNA. I was also able to differentiate what appear to be "che" notes at 1:525, 2:34, 3:53, 3:56, 4:005, 4:115, 5:12, 5:125, and 5:345; songs at 1:09-1:11, 6:05-6:08 (BEST example), and 7:03-7:05; and what I believe is a lower-pitched "choo" call at 6:46.) - CAM - 26 January 2005]

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