ML 49949

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Surfbird -- Calidris virgata More
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Age/Sex
Identification
Solicitation
Behavior
Note

2 Adult Female  

100%

Sight and Sound

 

Same Species
 

 

Sound stimulation was (other): playback precopulating call.  

Leonard J Peyton
24 May 1975 at 06:00

    Geography
  • United States
    Alaska
    Locality
  • Eagle Summit-Steese Highway
    Latitude/Longitude
  • 64.4833333   -145.4166667
    Elevation
  • 1250 meters
    Habitats
  • Tundra
    Features
  • Rocky
    Channels
  • Mono
    Sampling Rate
    Bit Depth
    Recorders
  • NAGRA III
    Microphones
  • Sennheiser MKH 104
    Accessories
  • Parabola 99.1cm/30.5cm (39in/12in)
    Equipment Note

Purpose of sound: singing in defense of nesting territory; Behavior accompanying vocalization: running around on ground and calling from flight; When not vocalizing, birds were feeding;

Recordist's Note: "Two females were attracted to this playback (Pre-copulatory call) and proceeded to display and chase. Both birds showed no evidence of having a male around. Possibly both males were on nests or neither of these two females had attracted a male. These tapes contain what I call threat calls."

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