ML572146621
Автор
Caleb Gordon Медіа від цього автора Профіль
Дата
Локація
California Gulch/Warsaw Canyon confluence
Santa Cruz, Arizona, United States
Медіа з цієї локації Ілюстрований чеклист- Вік
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Деталі спостереження
Struggled with this ID, as BCGN was more expected at this spot (right at the Warsaw canyon-Cali Gulch confluence), but settled on BGGN after sending photos around for review by a few experts. Black above eye is a long straight line rather than crescent, tail is less graduated than typical BCGN, foraging was very active, no brownish seen in upperparts. Unfortunately, we did not record song, but we studied it and compared it with recordings of both BCGN and BGGN in the field, and this was what made us most confident that it was BGGN at the time, as it appeared to match western BGGN calls spot-on (Bzzzzz - bzz bzzp). Bill length seems more consistent with BGGN, though possibly within range for BCGN.
Технічна інформація
- Модель
- Canon EOS REBEL T3i
- Об'єктив
- EF300mm f/4L IS USM
- ISO
- 100
- Фокусна відстань
- 300 mm
- Спалах
- Flash did not fire
- f-stop
- f/5.0
- Витримка
- 1/400 sec
- Розміри
- 2406 pixels x 1743 pixels
- Розмір вихідного файлу
- 445.31 KB