ML484802011
- 年齡
- 未確定
- 性別
- 未確定
觀察細節
A very small and drab Empidonax with a mixed flock. Foraging low in mixed woods and scrub. Olive-gray back. Dark (blackish) wings with whitish feather edges and wing bars showing a hint of buff. Plain whitish undersides and throat. Short primary projection and short tail. Bold eye ring. Lower mandible yellow. Separated from Hammond’s Flycatcher by short primary projection and plain plumage. Both juvenile and adult Hammond’s Flycatchers molt prior to fall and should be in fresh, colorful plumage at this date. The photos show the plumage is not heavily worn suggesting this is a first fall bird. The photos match those of first fall Least Flycatcher well. It is possible this is a Dusky Flycatcher, but I believe a Dusky Flycatcher would have a longer tail and would have a less compact overall appearance. An adult Dusky Flycatcher would show worn plumage. A first fall Dusky Flycatcher should be darker gray in the throat and undersides and should have less strongly contrasting whitish wing bars and wing feather edges as well as other subtle plumage differences.
技術資訊
- 型號
- Canon EOS 7D Mark II
- 鏡頭
- EF100-400mm f/4.5-5.6L IS II USM
- ISO
- 800
- 焦距
- 349 mm
- 閃光
- Flash did not fire
- 光圈值
- f/11.0
- 快門
- 1/640 sec
- 次方
- 1367 pixels x 1023 pixels
- 原始檔案大小
- 396.14 KB