ML387558081
Přispěvatel
Garrett Lau Média od tohoto přispěvatele Profil
Datum
Lokalita
Don Edwards NWR--Pond A16
Santa Clara, California, United States
Média z této lokality Rozšířený seznam druhů- Věk a pohlaví
- Dospělá samice - 1
Podrobnosti k pozorování
Female with short tuft. See photos. I've seen two hybrids (Tufted Duck x scaup) over the past two years, so I studied my photos to make sure it wasn't a hybrid. The flanks are brown, whereas a hybrid would have grayish flanks. The back is solid dark brown, darker than the flanks, whereas a hybrid's back would be lighter, with grayish barring. UPDATE: I have been informed that the part about a hybrid's back having grayish barring only applies to males. The way to identify female hybrids is to look for traits of both species. This one seems to be pure. Other Tufted Duck features seen on this bird are white undertail coverts and an S-shaped border between the dark upperparts and the flanks.
Technické informace
- Model
- Canon EOS 7D Mark II
- Objektiv
- EF500mm f/4L IS II USM +1.4x III
- ISO
- 1600
- Ohnisková vzdálenost
- 700 mm
- Blesk
- Flash did not fire
- Clonové číslo
- f/5.6
- Expoziční čas
- 1/800 sec
- Rozměry
- 905 pixels x 603 pixels
- Původní velikost souboru
- 300.71 KB