Red-breasted Merganser - Gil Ewing
报告

作者

日期

eBird记录 S289023468

地点

Nimbus Dam, south side, American River access
Sacramento, California, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 38.6359286, -121.221023
年龄和性别
未成年性别未知 - 1

媒体文件注释

A first-year individual, sex undeterminable.

观察细节

Continuing/returning immature found/reported by Peyton Bounds. See photos. The third and fourth photos show this bird with a Common Merganser for easy comparison. The Red-breasted is slightly smaller, with a thinner bill and smaller crown. Note the bill is more orange and less red. There is no distinct white throat patch on the RBME, but the upper part of the anterior neck is whiter than that of the COME. From behind, the back and rear of the head and neck are darker than in the COME. The base color of the head is a paler fawn color, as opposed to a darker chestnut in the COME.

技术信息

型号
Canon EOS R7
镜头
RF100-400mm F5.6-8 IS USM
ISO
3200
焦距
373 mm
闪光
Flash did not fire
光圈
f/9.0
快门速度
1/640 sec
尺寸
5361 pixels x 3576 pixels
原始文件大小
3.78 MB