Double-crested Cormorant - Kiandra Mitchell
报告

作者

日期

eBird记录 S287587922

地点

San Joaquin Wildlife Sanctuary--Treehill Trail
Orange, California, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 33.6672044, -117.838347
年龄
未说明
性别
未说明

媒体文件注释

One of the many large groups of cormorants that came in from the west

观察细节

This was a big surprise. Groups of 30-120 came in V formations mostly from the east. Counted individually in the small groups, then conservatively estimated the large groups, as several would come simultaneously across a wide area. When we did this survey in October, we only had 7 DCCO fly in with the crows. Thankfully, most of the cormorant flocks flew in before the crows really got going so we could just focus on counting the cormorants.

技术信息

型号
COOLPIX P950
ISO
100
焦距
13.4 mm
闪光
Flash did not fire
光圈
f/3.5
快门速度
1/400 sec
尺寸
4608 pixels x 3456 pixels
原始文件大小
3.54 MB