kHz
ML175810141
Contributeur
Derek Lecy Fichiers multimédias de ce contributeur Profil
Date
Site d'observation
McNear Brickyard (Private Property/Authorization for Access Required)
Marin, California, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge
- Non précisé
- Sexe
- Non précisé
- Comportements
- En vol; Recherche de nourriture ou alimentation
- Sons
- Cri de vol
- Repasse
- Repasse non utilisée
Commentaires
Flight calls of numerous birds flying/foraging overhead.
Détails de l'observation
Rough estimate. Very numerous. Number based on having observed this migratory event on various evenings in the past during official counts, having those counts yield 18,000-22,000 birds depending on the evening. The number of birds tonight seemed roughly half of those larger numbered counts, hence the estimate of ~10,000 birds.
Informations techniques
- Enregistreur
- iPhone XS
- Microphone
- Accessoires
- Taille originale du fichier
- 2.22 MB