Автор
Ryan O'Donnell Медіа від цього автора Профіль
Дата
Локація
San Diego Pelagic (27Sep15, 7)
San Diego, California, United States
Медіа з цієї локації Ілюстрований чеклист- Вік і стать
- Невідомий вік, невідома стать - 1
- Поведінка
- Політний
Деталі спостереження
Leader's list had two unidentified Leach's Storm-Petrels. I (RPO) identified one of those as Townsend's on the basis of photos (12:16 PM) showing long white rump, more than half of tail length (rather than about half of tail length of nominate Leach's), along with small compact body shape and prominent carpal bar reaching front edge of wing (ruling out Wilson's). Rare pale-rumped Chapman's wouldn't have rump this bright. Wedge-rumped Storm-Petrel eliminated mostly by probability and range, but also by apparently long tail fork of this bird and by white rump not reaching close enough to tail tip. I am new to identifying Leach's subspecies, and would appreciate correction if this assessment seems to be in error.
Технічна інформація
- Модель
- NIKON D90
- ISO
- 500
- Фокусна відстань
- 400 mm
- Спалах
- Flash did not fire
- f-stop
- f/6.3
- Витримка
- 1/2500 sec
- Розміри
- 554 pixels x 368 pixels
- Розмір вихідного файлу
- 141.57 KB