ML273396771
Přispěvatel
Carl Haynie Média od tohoto přispěvatele Profil
Datum
Lokalita
Lake Sammamish SP
King, Washington, United States
Média z této lokality Rozšířený seznam druhů- Věk
- Nespecifikováno
- Pohlaví
- Nespecifikováno
Poznámky
dark-billed bird on bottom, pale-billed bird above
Podrobnosti k pozorování
Would like opinions on these suspected F/juv BAGOs. Mostly pale bill on one bird, noticeable manes on both, and fairly steep foreheads. In flight, only a modest amount of white in wings. On flight shot of darker-billed bird, there's seemingly only 6 white secondaries, and it lacks the dark bar splitting the white as in first bird (significant? a trait of juv?). I had this latter one labeled Common/Barrow's for a time and can be convinced just to call both these birds that way given that on rare occasions F Common can have a mostly pale bill (Sibley, 2010 paper). I suspect the dark billed bird is a juv.
Technické informace
- Model
- DSC-RX10M4
- Objektiv
- 8.8-220mm f/2.4-4.0
- ISO
- 800
- Ohnisková vzdálenost
- 220 mm
- Blesk
- Flash did not fire
- Clonové číslo
- f/4.0
- Expoziční čas
- 1/400 sec
- Rozměry
- 1024 pixels x 683 pixels
- Původní velikost souboru
- 447.88 KB