ML612899197
Contributeur
Date
Site d'observation
- Âge et sexe
- Adulte, sexe inconnu - 1
- Comportements
- En vol
- Sons
- Cri; Cri de vol; Non-vocal
- Repasse
- Repasse non utilisée
Commentaires
One adult trumpeter swan silently floated on the surface of a pond for 10+ minutes. It gave 3 abbreviated calls immediately before taking flight. Then toward the end of the recording the swan one can hear longer duration calls with more widely spaced harmonics. Between the two call types, one can hear the pattering of the swan's feet on the water and the vibrato of the wings as the swan gained lift.
Détails de l'observation
Continuing at 40.86524 -124.11081. Black lores, connected to eye, straight black bill. Flew out at 0813 and descended into the Jackson Ranch Rd area. One adult trumpeter swan silently floated on the surface of a pond for 10+ minutes. It gave 3 abbreviated calls immediately before taking flight. Then toward the end of the recording the swan one can hear longer duration calls with more widely spaced harmonics. Between the two call types, one can hear the pattering of the swan's feet on the water and the vibrato of the wings as the swan gained lift.
Espèces additionnelles
Informations techniques
- Enregistreur
- Mixpre3 II
- Microphone
- Sennheiser
- Accessoires
- parabola
- Taille originale du fichier
- 5.99 MB