ML186202921
Přispěvatel
David Drews Média od tohoto přispěvatele Profil
Datum
Lokalita
Schlitz Audubon Nature Center
Milwaukee, Wisconsin, United States
Média z této lokality Rozšířený seznam druhů- Věk a pohlaví
- Dospělec, neznámé pohlaví - 70
- Chování
- Letící
- Tagy
- Habitat
Podrobnosti k pozorování
Flying southward in wave after wave. 14 were seen on the water, others in the air. Typical groups ranged from a low of 10-20, to many at 30-45, and several at 55-70. Estimated at least 1000 on site. Looking at photo sequence carefully, at least 1600 photographed over five minutes of a six minute sequence, after eliminating any apparent redundancies. Photographed in each minute from 10:59-12:05: 346, 224, 458, 374, 85, 0 (no photos), 170. I had seen several groups fly by before starting to photograph--too difficult to count at distance--so count is likely higher.
Technické informace
- Model
- NIKON D5200
- ISO
- 100
- Ohnisková vzdálenost
- 300 mm
- Blesk
- Flash did not fire
- Clonové číslo
- f/5.6
- Expoziční čas
- 1/1600 sec
- Rozměry
- 6000 pixels x 1928 pixels
- Původní velikost souboru
- 7.1 MB