ML268439391
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
A single royal tern in basic plumage was observed perched on the beach among various gull species. The bird was noticeably larger than Gray-hooded Gull and similar in size to Gray Gull. It had a relatively thick bill and a reduced amount of black on the head, for which reason it was identified as a Royal Tern and not as the more common Elegant Tern. The white band with black letters was clearly readable on some of the photographs, showing the three-letter code 4VT. The bird was reported to the Bird Banding Lab of Patuxent Wildlife Research Center, through https://www.pwrc.usgs.gov/bbl/bblretrv, and was assigned the reference ID number 300375.
技術資訊
- 型號
- Canon EOS REBEL T3
- 鏡頭
- EF-S55-250mm f/4-5.6 IS STM
- ISO
- 3200
- 焦距
- 250 mm
- 閃光
- Flash did not fire
- 光圈值
- f/16.0
- 快門
- 1/2000 sec
- 次方
- 2063 pixels x 1550 pixels
- 原始檔案大小
- 1.46 MB