ML179587261
Contribuidor
LynnErla Beegle Archivos multimedia de este(a) colaborador(a) Perfil
Fecha
Localidad
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Archivos multimedia de esta localidad Listado ilustrado- Edad
- No especificado
- Sexo
- No especificado
- Comportamientos
- Volando
- Etiquetas
- Hábitat; Ningún ave
Comentarios
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.
Detalles de la observación
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.
Información técnica
- Modelo
- COOLPIX S7000
- ISO
- 800
- Longitud focal
- 71.4 mm
- Flash
- Flash did not fire, auto
- Número f (o Apertura del diafragma)
- f/6.2
- Velocidad de obturación
- 1/15 sec
- Dimensiones
- 2048 pixels x 1536 pixels
- Tamaño original del archivo
- 601.45 KB