Contribuidor
Leonard J. Peyton Media from this contributor
Fecha
6:00
Localidad
Eagle Summit-Steese Highway
Alaska, United States
Media from this location Listado ilustrado- Edad y sexo
- Hembra adulta - 2
- Playback
- Se usó playback
Comentarios
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.". Sound stimulation was (other): playback precopulating call. Habitat: Tundra, Rocky.
Información técnica
- Grabadora
- NAGRA III
- Micrófono
- Sennheiser MKH 104
- Accesorios
- Parabola 99.1cm/30.5cm (39in/12in)
Información de archivo
- Catalogada
- 3 May 2001 - Lauren A. Serafin
- Digitalizada
- 3 May 2001 - Lauren A. Serafin