ML184655871
作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
观察细节
First observation at 0911. An incredible number of flocks flying over, generally traveling to the south or SSE. Most vocalizing as they flew over. Frequency of flocks passing over seemed to be the greatest in the first hour or two of the survey. After 1300, only a few Tundra Swans passed over, in flocks more dominated by Trumpeters. We saw a number of mixed flocks. Earlier in the survey, these were generally dominated by Tundra Swans, with a few Trumpeter Swans leading the point of the flock. Counts of flocks in (approximately) chronological order: 25, 85, 35, 27, 27, 32, 31, 64, 63, 35, 15, 23, 53, 14, 23, 43, 22, 10, 75, 37, 9, 35, 22, 18, 51, 7, 100, 48, 50, 45, 22, 18, 5, 30, 28, 60, 23, 16, 85, 16, 39, 25, 15, 12, 46, 10, 5, 15, 13, 53, 4, 20, 2. Notes on mixed groups: At roughly 0939, saw a mixed group of swans with 4 TRUS in the lead followed by 22 TUSW (Janice got photos). Ca 0944, saw a flock with 7 TRUS leading 9 TUSW (Shane photos). At 1002, saw 2 TRUS leading 22 TUSW. At 1445, got photos of a group of 12 swans flying south over reach 4, with 2 TRUS leading 10 TUSW. Detections (number 15-minute intervals in which the species was detected): 16 flyover(s).
技术信息
- 型号
- COOLPIX P900
- ISO
- 250
- 焦距
- 285 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/6.3
- 快门速度
- 1/500 sec
- 尺寸
- 4608 pixels x 3456 pixels
- 原始文件大小
- 4.94 MB