ML79125001
Участник
Дата
Местоположение
- Возраст
- Не указано
- Пол
- Не указано
Подробности наблюдения
I initially scoped this bird from a distance, keying in on a paler, slightly smaller white-cheeked goose species. I was immediately bit struck by the seemingly larger than usual size of this bird. It was smaller than the surrounding Canada Geese, but not by the wide margin I'm used to seeing with Cackling Geese and this impression continued throughout by brief observation of the bird. Posture is always an important consideration when assessing white-cheeked geese but after analyzing my many images, along with my field impressions, this bird was no doubt on the larger end of the spectrum for Cackling Goose. Typical short, stubby bill but with a more bulbous appearance at base of lower mandible. Head shape was consistently more sloping, rather than a steep, blocky forehead but this can also be attributed to posture. Like all Cackling-type Geese, this bird had a very long-winged, tapered appearance. The white-cheek was gleaming, non-indented, broad and fully connected underneath the throat with no dark line bisecting the white. A poorly defined white ring separated the black neck sock and its pale breast feathering (not expected in taverneri). The neck was overall thicker and shorter. Wing covert pattern is showing some fairly strong contrast (obvious bold white feather fringes) with blueish/gray feathering. Almost certainly a large hutchinsii but the initial thought of taverneri did cross my mind (overall larger size, head and bill shape, shape of cheek patch) and there is mixing between both taxa.
Техническая информация
- Модель
- NIKON D500
- Lens
- 300.0 mm f/4.0
- ISO
- 800
- Фокусное расстояние
- 420 mm
- Вспышка
- Flash did not fire
- Диафрагма
- f/5.6
- Выдержка
- 1/2500 sec
- Размеры
- 3796 pixels x 2531 pixels
- Исходный размер файла
- 6.12 MB