ML451582401
Contribuidor
Fecha
Localidad
Calgary--Carburn Park
Calgary, Alberta, Canada
Archivos multimedia de esta localidad Listado ilustrado- Edad
- No especificado
- Sexo
- No especificado
- Comportamientos
- Volando
Detalles de la observación
One swift was viewed for approximately 90 minutes, flying over the pond among a large mixed group of swallows (including Tree, Violet-green, Bank, Rough-winged, Barn and Cliff). When the swift came close, it seemed larger/bulkier than the surrounding swallows, slower and easier to track. It was dark grey-brown overall, with bulky wings. Wings long, inner primaries always bulging. Throat lighter than chest, rump close to same shade as back. One birder thought they heard it give loud single-note chirp calls every time it approached. However, no audio was recorded and with so many birds present, one can't be certain which bird was calling. Photos included, brief video here https://youtu.be/1QY1zFmTjOQ More photos below.
Información técnica
- Modelo
- NIKON D7500
- Lente
- Nikon AF-S Nikkor 200-500mm f/5.6E ED VR
- ISO
- 1100
- Longitud focal
- 500 mm
- Flash
- Flash did not fire, red-eye reduction
- Número f (o Apertura del diafragma)
- f/5.6
- Velocidad de obturación
- 1/1600 sec
- Dimensiones
- 1329 pixels x 884 pixels
- Tamaño original del archivo
- 524 KB