ML179739341
Colaborador
LynnErla Beegle Média deste colaborador Perfil
Data
Localização
Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Média deste local Lista Ilustrada- Idade
- Não especificado
- Sexo
- Não especificado
- Comportamentos
- Voar
- Sons
- Chamamento em voo
- Playback
- Não especificado
Notas sobre o média
Recorded 19:17 EDT as they were entering a roost chimney and swirling around; over 3,000 CHSW present.
Detalhes da observação
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.
Informação técnica
- Gravador
- Microfone
- Acessórios
- Tamanho do ficheiro original
- 3 MB