- 年齡
- 未確定
- 性別
- 未確定
觀察細節
Not sure about species, there were 6-7 individuals moving as a flock. At first I thought perhaps Australian swiftlet which would also be very rare in the area but later local birders from Darwin mentioned the occurrence of Himalayan types in the region the previous year and suggested it could be it. Later other observer suggested it could be this species because it has a relatively deeply notched tail, and some forms do show indistinct barring on the under parts. So I place it here waiting for more input. They vocalized quite frequently but I was not able to record.
技術資訊
- 型號
- Canon EOS R6
- 鏡頭
- RF100-500mm F4.5-7.1 L IS USM
- ISO
- 1000
- 焦距
- 428 mm
- 閃光
- Flash did not fire
- 光圈值
- f/7.1
- 快門
- 1/2000 sec
- 次方
- 1457 pixels x 946 pixels
- 原始檔案大小
- 677.55 KB