ML179587301
Bidragsyter
LynnErla Beegle Media from this contributor Profil
Dato
Lokalitet
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Media from this location Illustrert sjekkliste- Alder
- Ikke spesifisert
- Kjønn
- Ikke spesifisert
- Oppførsel
- I flukt
- Merker
- Habitat
Kommentarer
Time is 19:22 EDT and many more CHSW have suddenly arrived, and all are entering the chimney over the next 8 minutes, about 10 per second.
Observasjonsdetaljer
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.
Teknisk informasjon
- Model
- COOLPIX S7000
- ISO
- 800
- Focal length
- 40.1 mm
- Flash
- Flash did not fire, auto
- f-stop
- f/5.5
- Shutter speed
- 1/15 sec
- Dimensions
- 2048 pixels x 1536 pixels
- Original file size
- 632.97 KB