ML 60663

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Rufous Nightjar (Northern) -- Antrostomus rufus minimus More
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Age/Sex
Identification
Solicitation
Behavior
Note

 

 

Natural
Playback Self
 

call

mechanical sound

song

fly

 

 

Paul A Schwartz
1 Jun 1974 at 21:00

    Geography
  • Venezuela
    Zulia
    Locality
  • Canada El Gorda; Hacienda La Estrella; ca. San Jose, No. Perija)
    Latitude/Longitude
  • 10.0   -72.4
    Elevation
  • 30 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 # 53. Bulk reel: 81
203 tape.
9:00 PM - 9:30 PM. Cloudy, fair, moon. Natural song. Quality: 1. Level: +3. 3 3/4" & 7.5" LN.
Song after playback. At end bird's song accelerates and bird then flies with wing-knocks and "growls." Quality: 1. Level: +3. 7.5". LN.
Then song given later. Quality: 1. Level: +3. 7.5" & 3 3/4". LN.
While this bird was singing "naturally" (from as early as 7:15 PM) it did not use "growls" or wing-knock display. I played some of its song and while I was still playing it flew with knocks and growls. I tried to get it to repeat so as to record some but got only a little. Thereafter I tried repeatedly through playback, sometimes waiting 5 minutaes or more, to have bird display but it invariably flew, after singing, without displaying. Some time after I stopped trying, twice in succession the bird gave a "big" display after a short song session. After the last, it alighted in the tree where I had last recorded it and continued giving "growls." A bit of this was recorded with no attempt to focus exactly on the bird.

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