Laughing Gull - Ethan Brown
报告

作者

日期

eBird记录 S274254544

地点

Big Slough Boat Ramp
Carroll, Illinois, United States
该地点产生的媒体文件 配图名录
地图
地图 坐标: 42.0165822, -90.1234833
年龄
未说明
性别
未说明

观察细节

Smaller than the RBGUs. Slender, long-winged look. Dark legs and bill. A small amount of dark smudging on the the head. Fairly dark gray upperparts and solid black primaries. Franklin's Gull eliminated by overall shape, longer, heavier bill, and no white tips on primaries. Poor digiscope photos.

技术信息

型号
SM-S134DL
ISO
80
焦距
3.4 mm
闪光
Flash did not fire
光圈
f/2.2
快门速度
1/1000 sec
尺寸
1495 pixels x 1121 pixels
原始文件大小
256.79 KB