ML179587291
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
- Mots clés
- Habitat
Commentaires
Time 19:16 EDT already started to enter chimney but just swirling in this photo
Détails de l'observation
Conservative estimate, based on counting 100x100 of swirling flock. The swifts entered the chimney at 215 South McDowell (News & Observer) from 7:14 until 7:30. About 10 per second entered the chimney over a period of 15 minutes. There were breaks in between where they were swirling, so another estimate was based on 500 birds entering the chimney per minute for a total of 7 active minutes. They started the entry at 7:14 and the last bird entered at 7:30.See photos.
Informations techniques
- Modèle
- COOLPIX S7000
- ISO
- 280
- Longueur focale
- 11.1 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/4.4
- Vitesse d'obturation
- 1/30 sec
- Dimensions
- 2048 pixels x 1536 pixels
- Taille originale du fichier
- 613.36 KB