ML542639071
作者
日期
地点
- 年龄
- 未说明
- 性别
- 未说明
媒体文件注释
2 female-immature type Cassin's finches
观察细节
2 female-immature type Cassin’s finches investigated feeder and ground below feeder for a few minutes— just long enough to grab a few bad photos through a window— and flushed with other birds when a red-shouldered hawk flew by. monitored for hours for their return, searched nearby trees and yards, did not see them again. compared with resident house finches, these showed bold superciliary and malar stripes, larger bill, pale back streaks, and paler overall coloration. separated from purple finch by deep bill with straight culmen; longer primary projection; shorter and more notched tail; thin, dense, and crisp breast streaks; sharp and crisp undertail covert streaks; and pale eye arcs. did not vocalize, silent.
额外物种
技术信息
- 型号
- NIKON 1 V3
- 镜头
- 1 NIKKOR VR 70-300mm f/4.5-5.6
- ISO
- 640
- 焦距
- 300 mm
- 闪光
- Flash did not fire
- 光圈
- f/5.6
- 快门速度
- 1/250 sec
- 尺寸
- 3353 pixels x 1834 pixels
- 原始文件大小
- 4.33 MB