ML181033051
Contributeur
LynnErla Beegle Fichiers multimédias de ce contributeur Profil
Date
Site d'observation
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Fichiers multimédias de cet endroit Liste illustrée- Âge
- Non précisé
- Sexe
- Non précisé
- Comportements
- En vol
Commentaires
CHSW Migration flock entering chimney at 19:14 EDT. Most of flock is visible as a spiral.
Détails de l'observation
Started out about 500 but kept increasing until time of entry into N&O chimney (directly west of our location). Estimate, increased rapidly between 6:50 and 7:05 pm EDT. A few entered chimney early but main flow began at 19:10 through 19:20 with heaviest infow at 19:15. One estimate based on 5 birds a second for 10 minutes.
Informations techniques
- Modèle
- COOLPIX S7000
- ISO
- 500
- Longueur focale
- 4.5 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/3.4
- Vitesse d'obturation
- 1/8 sec
- Dimensions
- 4608 pixels x 3456 pixels
- Taille originale du fichier
- 6.25 MB