作者
Jon G. 该用户提供的媒体文件 档案
日期
地点
Elsen's Hill, West DuPage Woods Forest Preserve
DuPage, Illinois, United States
该地点产生的媒体文件 配图名录- 年龄和性别
- 成鸟,性别未知 - X
观察细节
Overall very light in color; Non-existend belly band; Very light patagial marks; Head is very light colored, except for dark malar stripe; Small dark wrist commas; Narrow black bands in the remiges; The tail shows some red, as some Krider's do. This RTHA exhibits enough Krider traits to assign it to that population. Per Jerry Liguori, "...we consider birds with at least three of the field marks discussed below to be Krider’s, and Red-tailed Hawks with fewer than three to be potential intergrades with neighboring subspecies" Reference; Jerry Liguori, "A Study of Krider's Red-tailed Hawk", ABA "Birding," March 2010 (.pdf). Viewed for 2 minutes. No views available of topside.
技术信息
- 型号
- Canon EOS 7D Mark II
- 镜头
- EF400mm f/5.6L USM
- ISO
- 2500
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/14.0
- 快门速度
- 1/2500 sec
- 尺寸
- 498 pixels x 332 pixels
- 原始文件大小
- 78.53 KB