ML154435001
作者
Ted Floyd 该用户提供的媒体文件 档案
日期
地点
Walden Ponds Wildlife Habitat--Walden & Sawhill Ponds all together
Boulder, Colorado, 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
I was unclear about aging this bird with the remiges and upperwing coverts, so I reached out to Peter Pyle. This is his analysis: "SY on rects alone. In this case the molt limits are mostly within the lessers and between the lesser and median coverts (so a relatively restricted PF). The small buff tips to the medians (and to some extent some of the greaters) is a juvenile thing. The 3rd or so greater from the outside has been replaced accidentally. I call those 'wear clines' from the innermost greater outward, and among the tertials, as these are the exposed feathers when the bird is sitting."
观察细节
Estimated count. Widespread, but not a lot of song, perhaps because of the overcast. See analysis of a particular robin, below.
技术信息
- 型号
- Canon PowerShot SX50 HS
- ISO
- 400
- 焦距
- 179.8 mm
- 闪光
- Flash did not fire, auto
- 光圈
- f/6.5
- 快门速度
- 1/400 sec
- 尺寸
- 4000 pixels x 3000 pixels
- 原始文件大小
- 3.58 MB