ML 7947

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Couch's Kingbird -- Tyrannus couchii More
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Age/Sex
Identification
Solicitation
Behavior
Note

 

 

 

song

dawn song

 

 

L. Irby Davis
20 May 1954 at 06:30

    Geography
  • Mexico
    San Luis Potosí
    Locality
  • 16.0 km N of Valles
    Elevation
  • 215 meters
    Habitats
  • Forest
No locations found with lat/long
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • MAGNEMITE 610E
    Microphones
  • Electro-Voice 650
    Accessories
  • Parabola (Unknown Diameter/Focal Length)
    Equipment Note

NOTES: General climate: DRY; SEMI-ARID TROPICAL WOODS. HIGH PASS FILTER. ON 10 JUNE 1979 IDENTIFIED AS TYRANNUS COUCHII BY L.I. DAVIS. ON 02 JULY 1979 IDENTIFIED AS TYRANNUS COUCHII BY L.I. DAVIS. IDENTIFIED AS T. COUCHII BY T. PARKER APR83 - GB. Sex: 1 UNKNOWN

[These indeed represent the Regularly Repeated Vocalizations (RRV) of Smith (1966. Communication and relationships in the genus Tyrannus. Publ. Nuttall Ornith. Cl. 6), which presumably are comparable to the "Dawn Songs" of BNA. Each RRV is preceded by a variable number of "Tzeeeeerrhhh" Calls (or Compound Vocalizations; CdVs). Quality unchanged (2-3, due to odd hissing noise) - CAM - 22 December 2004]

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