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Деталі спостереження
Rather distant single group of nine birds perched roosting on the broken down wooden hunting structure at back of lake at north terminus of Garst Road. Observed through Swarovski 80mm ATS field scope with 25-50X eyepiece. Photographed with 1000mm lens rig on Canon 1Dx. One adult male can be identified, big red gular sac, with no visible pale alar bar on upperwing eliminating Great Frigatebird. Eight juvenile or immatures with white head and chest can be seen. None have rusty or buffy coloring about the head. In the open wing sunning photograph the diamond shaped white belly patch can be seen on one bird but impossible to discern exactly extent of white markings on the others. Given the adult male and juvenile Magnificent Frigatebird, equal size of the birds, and plumages all consistent with Magnificent Frigatebird I think they can all be attributed to this species.
Технічна інформація
- Модель
- Canon EOS-1D X
- Об'єктив
- EF500mm f/4L IS II USM +2x III
- ISO
- 2000
- Фокусна відстань
- 1000 mm
- Спалах
- Flash did not fire, auto
- f-stop
- f/8.0
- Витримка
- 1/3200 sec
- Розміри
- 1200 pixels x 900 pixels
- Розмір вихідного файлу
- 91.23 KB