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Chimney Swift Roost--Downtown Raleigh
Wake, North Carolina, United States
Archivos multimedia de esta localidad Listado ilustrado
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Mapa Coordenadas: 35.7786554, -78.6404747
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Chimney Swifts swirling around a roost chimney BEFORE they began to enter; recorded at 19:10 EDT. The sounds seem different than the sounds produced while they are entering the roost chimney (about five minutes later; listen to the other recordings).

Detalles de la observación

Started out about 500 but kept increasing until time of entry into N&O chimney (directly west of our location). Estimate, increased rapidly between 6:50 and 7:05 pm EDT. A few entered chimney early but main flow began at 19:10 through 19:20 with heaviest infow at 19:15. One estimate based on 5 birds a second for 10 minutes.

Información técnica

Grabadora
Nikon CoolPix S7000, MOV to WAV using www.convertio.co
Micrófono
Accesorios
Tamaño original del archivo
3.28 MB