ML179739341
Collaboratore
LynnErla Beegle Contenuti multimediali da questo collaboratore Profilo
Data
Località
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Contenuti multimediali da questa località Checklist illustrata- Età
- Non specificato
- Sesso
- Non specificato
- Comportamenti
- In volo
- Suoni
- Richiamo in volo
- Richiamo
- Non specificato
Note contenuto multimediale
Recorded 19:17 EDT as they were entering a roost chimney and swirling around; over 3,000 CHSW present.
Dettagli dell'osservazione
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.
Informazioni tecniche
- Registratore
- Microfono
- Accessori
- Dimensione originale file
- 3 MB