ML349341121
- 年齡
- 未確定
- 性別
- 未確定
影音備註
terrible photo....
觀察細節
At least 3 out of 4 responded with typical grunt calls to PB and these were on the inland side of the tributary to Marsh Creek. One of the 3 was observed as it came out to look at us (or the rail making the calls!), and also responded to my vocalization using the "3-stoogies Curly" call. The fourth was on the river side close to where phragmites started and only responded with repeated "ki-dek"s for several minutes (heard as we departed and later when were in Marsh Creek half way to Little Marsh Creek). The VIRA habitat here was different from the typical Choptank R marsh habitats we encountered today. It consisted of low to middle sized bushes (1-3 feet) with a broad-leaf grass type (12-24 inches) interspersed throughout. The bushes made up about 40% of the habitat area. There were irregular openings and spacings between the plants (which had root clumps; the tide was starting to fall) that the rail we observed would walk through. The size of the habitat was limited, probably no more than 2 acres and closer to 1 acre. In contrast, mainly tall (3 to 7 feet) phragmites dominated the balance of this marsh and the MAWR and Red-winged BBs used these phragmites areas - we did not observe wrens or blackbirds in the VIRA habitat. Interestingly, towards drier land where the bushes got bigger and where trees began, sang the Song Sparrow.
技術資訊
- 型號
- NIKON D7100
- 鏡頭
- 200.0-500.0 mm f/5.6
- ISO
- 720
- 焦距
- 350 mm
- 閃光
- Flash did not fire
- 光圈值
- f/5.6
- 快門
- 1/400 sec
- 次方
- 2095 pixels x 1397 pixels
- 原始檔案大小
- 3.29 MB