Участник
Sharon Peterson Media from this contributor Профиль
Дата
Местоположение
Julia Butler Hansen NWR
Wahkiakum, Washington, United States
Media from this location Иллюстрированный Список Видов- Возраст
- Не указано
- Пол
- Не указано
Подробности наблюдения
Note the lack of any distinct yellow near the eyes. Other species considered but eliminated: Trumpeter Swan: 1) Lack of a "door stop head", rather these birds have culmen dished and crown more rounded. 2) these birds have margins between softpart mandibles and head featrhers curved, not straight. 3) as compared to Trumpeter, these birds eyes are more isolated rather than conjoined with the mandible. Whooper Swan: Lack of extensive yellowish on the bills. Mute Swan: lack of orange bill and bill knob. Birds did not vocalize.
Техническая информация
- Модель
- NIKON D700
- ISO
- 640
- Фокусное расстояние
- 400 mm
- Вспышка
- Flash did not fire
- Диафрагма
- f/4.0
- Выдержка
- 1/1250 sec
- Размеры
- 967 pixels x 690 pixels
- Исходный размер файла
- 454.2 KB