ML66332971
作者
日期
地点
- 年龄和性别
- 幼鸟,性别未知 - X
媒体文件注释
juvenile Snowy Egret, Pueblo Reservoir, CO, 17 Aug. 2017
观察细节
This bird threw us off for a while. Dull yellow legs, pale bill not showing distinctive dark to light transitions, plumage all white with no dark toward the wingtips. Seems slightly larger than snowy egret. After studying the photos, the immature feathers on the chin and crown indicate its a juvenile bird that does not match Little Blue Heron. This is probably just a awkward-looking, ill-colored, post-fledgling individual. ... I (JW) concur with Mark (above). After reviewing my photos and video, I too feel our bird was almost certainly a juvenile Snowy Egret in the plumage easily mistaken for Little Blue and substantially different from the older immature Snowies I am more used to seeing. On our bird, as revealed by photos & video, all wingtips appear truly to be completely white, the bill and eye and head structure and coloration appears more like Snowy than Little Blue, and the sometimes-active foraging behavior in retrospect was much better for Snowy. The warning signs were there in the field and we had picked up on most of them, but the strikingly monochrome legs, the washed-out bill, and the bird's initial posture when first studied all led us down the wrong path.
技术信息
- 型号
- Canon PowerShot SX60 HS
- ISO
- 100
- 焦距
- 247 mm
- 闪光
- Flash fired, red-eye reduction
- 光圈
- f/6.5
- 快门速度
- 1/800 sec
- 尺寸
- 1824 pixels x 2111 pixels
- 原始文件大小
- 864.73 KB