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Documenting flock size
Деталі спостереження
Happened to look up and saw coming from the south a large V. It was the first of total-seen five flocks which flew by us-three flocks were nearly overhead and two flocks a little in the distance to the west. Flocks were flying S to N; winds from S10 & diminishing. Took several photos to assist in counting. Included photo = 361. Then took total from estimates on the other photo sets 300, 220, 300, 200, 200. Likely an underestimate. The flocks were heading across the lake but did not give wing indications that they were going to land. We were unable to see the lake surface from our campsite. We then rode our bikes to the swimming beach to see if they landed. We did not see them on the lake. V formations and then occasionally a long string would slipstream - beautiful.
Технічна інформація
- Модель
- COOLPIX B700
- ISO
- 100
- Фокусна відстань
- 14.3 mm
- Спалах
- Flash did not fire
- f-stop
- f/4.5
- Витримка
- 1/1600 sec
- Розміри
- 5184 pixels x 3888 pixels
- Розмір вихідного файлу
- 4.11 MB