ML618528533
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
After initially eyeing the singing PLVI in the same tree, I noticed the typical slower vireo foraging movements of this bird to the right, and initially the clean white throat really grabbed my attention from underneath with a good sharp contrast to head/hood color and clean borders to that . Getting a profile view a couple of seconds later showed an extensive and bright, lime green color along flanks. Bird eventually turned and showed a green mantle as well. All of this against a slate- or blue-gray head. Throat border looked really well defined relative to the head. Cassin's obviously the more likely bird, but I have not seen a CAVI with this type of contrast to the head & throat, or this well defined of a throat border, nor this bright overall. The CAVIs seem to have a duller green appearance overall and more uniform over the entirety of the upper parts, while having sort of dingy throat that doesn't show the "clean" borders that this bird showed. Cassin's do seem quite a bit more scarce in spring (BHVI scare anytime in NM, but especially in spring as well). Photos (and live view through bins) also show a pretty good contrast between the green colors above and the blue-gray color of head. Head color shows a sharp contrast against the white spectacles, and any of the white underneath.
テクニカル・インフォメーション
- モデル
- NIKON D850
- レンズ
- 500.0 mm f/5.6
- ISO
- 800
- 焦点距離
- 500 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/8.0
- シャッタースピード
- 1/320 sec
- 大きさ
- 3063 pixels x 2035 pixels
- オリジナルのファイルサイズ
- 3.33 MB