ML32621781
作者
Alex Lamoreaux 该用户提供的媒体文件 档案
日期
地点
Conejohela Flats (IBA)
Lancaster, Pennsylvania, United States
该地点产生的媒体文件 配图名录- 年龄和性别
- 未成年性别未知 - X
媒体文件注释
Advanced subadult (near-adult)
观察细节
Right as we were launching and heading towards Avocet Pt, we saw that all the Ring-billed Gulls, etc suddenly flush off the tip of Avocet Pt and suspected there was a predator in the area. Sure enough, sitting on a log along the south end of Avocet was a Peregrine. The falcon flew to Green Island as we approached, and was seen again later in the morning briefly harassing the Killdeer on Avocet Pt. No leg bands. Thought to be a full adult in the field, photos show that this is actually a very advanced subadult...showing retained juveniles feathers in some areas (outer secondaries, upperwing coverts, underwing coverts, uppertail coverts, upper breast, and leg feathers).
技术信息
- 型号
- Canon EOS 7D
- 镜头
- EF400mm f/5.6L USM
- ISO
- 400
- 焦距
- 400 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/5.6
- 快门速度
- 1/1250 sec
- 尺寸
- 2556 pixels x 1704 pixels
- 原始文件大小
- 1.6 MB