ML179587261
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; Aucun oiseau
Commentaires
Time 19:21 EDT continuing to enter chimney about 10 per second. The actual hole is very small in this chimney, so they all enter at the same point. This is the N&O retired chimney on 215 S McDowell Street, as seen from a parking garage on Salisbury south of Hargett.
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
- 800
- Longueur focale
- 71.4 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/6.2
- Vitesse d'obturation
- 1/15 sec
- Dimensions
- 2048 pixels x 1536 pixels
- Taille originale du fichier
- 601.45 KB