ML180342681
Přispěvatel
Kent Forward Média od tohoto přispěvatele Profil
Datum
Lokalita
Rancho Corral de Tierra--El Granada Area (lower), Clipper Ridge/French trails system
San Mateo, California, United States
Média z této lokality Rozšířený seznam druhů- Věk
- Nespecifikováno
- Pohlaví
- Nespecifikováno
Podrobnosti k pozorování
In the field I felt pretty good these were a flock of Vaux's Swfits passing through, I was able to get photos! Upon looking at the photos I wondered if they might be Northern Rough-winged Swallows, but there is no sign of a slightly notched tail, the throat is slightly lighter colored than the breast (the opposite would be true of Northern Rough-winged), and the wings do seem more narrow and pointy, especially in the second photo which is what I recalled from the field (the long narrow boomerang look). After this examination, I felt better again about Vaux's Swfits.
Technické informace
- Model
- Canon EOS 7D
- Objektiv
- EF100-400mm f/4.5-5.6L IS USM
- ISO
- 1000
- Ohnisková vzdálenost
- 260 mm
- Blesk
- Flash did not fire, auto
- Clonové číslo
- f/7.1
- Expoziční čas
- 1/1250 sec
- Rozměry
- 536 pixels x 357 pixels
- Původní velikost souboru
- 47.33 KB