Contributeur
Date
Site d'observation
- Âge et sexe
- Femelle adulte - 2; Mâle adulte - 2
- Comportements
- Cour, parade ou copulation
- Sons
- Cri
- Repasse
- Repasse non utilisée
Commentaires
NOTES: (Background Sounds: wind in aspens; Species Sound: infrequent; Social Contact: family?, colony?; Species Sound: infrequent; Social Contact: family?, colony?; Breeding Status: not territorial, not breeding; Behavioral Context: courtship?, mating invitation?, mate contact?; General Climate: arid; Cover Density: sparse; Strata in Habitat: both low flight and high flight noted) [The first half of this recording represented series of "Churr" Calls (0:04-0:11, 0:24-0:25 (possibly the final call of a series, most of which was missed), and 0:45-0:51; terminology following Bock et al. 1971, BNA). The vocalizations became more varied in second half with a combination of "Churr" and "Alarm" Calls during an observed copulation, series of "Alarm" Calls at 1:41-1:46 and 1:57-2:01, and a more rapid "twittering" series that may have represented "Alarm" Calls (this similar to a vocalization in LNS #80345, but quality not as good). Quality added (2-3, 2) - CAM - 9 December 2004]. Other Behaviors: Arrive, Copulate, Perform Visual Display. Habitat: Freshwater, Evergreen Forest, Coniferous Forest, Deciduous Forest, Riparian, Chaparral, Scrub, Canyon.
Espèces additionnelles
Informations techniques
- Enregistreur
- NAGRA IV-D
- Microphone
- Sennheiser MKH 404
- Accessoires
- Parabola 91.4cm/30.5cm (36in/12in)
Information d'archivage
- Catalogué
- 16 Nov 2000 - Nancy Schrempf
- Numérisé
- 22 Mar 2001 - Matthew D. Medler
- Édité
- 24 Apr 1997 - Martha Fischer