Автор
Neil Hayward Медіа від цього автора Профіль
Дата
Локація
Alaska Maritime NWR--Attu Island
Aleutians West Census Area, Alaska, United States
Медіа з цієї локації Ілюстрований чеклист- Вік
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Деталі спостереження
Continuing. White-bellied Asian ssp. of Barn Swallow. There are two Asian ssp. that reach Alaska: (i) gutturalis which has an incomplete breast band and (ii) rustica which has a solid breast band. Based on distribution, gutturalis is the more expected (in west and southwest AK) with rustica distributed to the north. Photos of this individual suggest a solid, dark breast band suggesting rustica? (The Nearctic form, erythrogaster, breeds in SE Alaska is eliminated due to cinnamon belly.) Observed feeding on the insects attracted to the kelp and seaweed, as well as perched on the ground. Silent.
Технічна інформація
- Модель
- Canon EOS 7D Mark II
- Об'єктив
- EF400mm f/5.6L USM
- ISO
- 1250
- Фокусна відстань
- 400 mm
- Спалах
- Flash did not fire, auto
- f-stop
- f/5.6
- Витримка
- 1/1600 sec
- Розміри
- 1471 pixels x 981 pixels
- Розмір вихідного файлу
- 1.52 MB