kHz
Contributeur
Leonard J. Peyton Fichiers multimédias de ce contributeur
Date
06:00
Site d'observation
Eagle Summit-Steese Highway
Alaska, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge et sexe
- Femelle adulte - 2
- Repasse
- Repasse utilisée
Commentaires
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.
Informations techniques
- Enregistreur
- NAGRA III
- Microphone
- Sennheiser MKH 104
- Accessoires
- Parabola 99.1cm/30.5cm (39in/12in)
Information d'archivage
- Catalogué
- 3 May 2001 - Lauren A. Serafin
- Numérisé
- 3 May 2001 - Lauren A. Serafin