ML393419551
Herring x Glaucous-winged Gull (hybrid) Larus argentatus x glaucescens
作者
Layton Pace 该用户提供的媒体文件
日期
地点
Ballona Creek--Lincoln Blvd. to 90 Fwy
Los Angeles, California, United States
该地点产生的媒体文件 配图名录- 年龄
- 未说明
- 性别
- 未说明
观察细节
Alvaro Jaramillo kindly looked at this posting and thought this bird likely a Cook Inlet Gull – Glaucous-winged x Herring. First cycle. Alvaro did not share his analysis. I suspect the analysis to be something like: Primaries are too dark and the bill appears too short and slight for a pure Glaucous-winged; bill is too hefty and plumage is not patterned enough for "Thayer's"; bill is not hefty enough for GWGU x Western hybrid; legs color cannot be seen. The bird was seen just west of the I-90 bridge in the middle of the creek. Kevin Lapp apparently saw this same bird on Nov. 22nd and also hypothesized a hybrid.
技术信息
- 型号
- COOLPIX P900
- ISO
- 125
- 焦距
- 428.4 mm
- 闪光
- Flash did not fire
- 光圈
- f/6.5
- 快门速度
- 1/500 sec
- 尺寸
- 4608 pixels x 3456 pixels
- 原始文件大小
- 8.16 MB