ML181930261
- 年齡
- 未確定
- 性別
- 未確定
影音備註
comparison with surrounding scaup
觀察細節
Steve Garrett and I observed this bird feeding actively with the big scaup flock between here and Colonel Sam. Watched for at least half an hour, although with frequent dives and swells it could be difficult to spot. Presumably the continuing bird along this area of waterfront, although I don't think its been reported from this location before. First noted as contrasting white flanks and entirely black body, including back, unlike the grayer scaup. Head shape rounder, more like scaup and less like a pointy ring-necked duck; additionally flanks an even white, not grey-tinged, and no whiter "spur" to the front. Bill had a slight white subterminal ring but not as bold as that of ring-necked, and did not appear to encircle the bill. Slight, bedraggled tuft was eventually visible as well.
技術資訊
- 型號
- Canon EOS 7D
- ISO
- 1000
- 焦距
- 400 mm
- 閃光
- Flash did not fire, auto
- 光圈值
- f/5.6
- 快門
- 1/500 sec
- 次方
- 2140 pixels x 1427 pixels
- 原始檔案大小
- 530.96 KB