ML357517791
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
This was a short-tailed hummingbird with a compact build, green back and rump and bright buffy sides and vent. This last feature alone eliminates all North American small hummingbirds, except for CAHU and BTHU. BTHU is longest bodied species in the genus, Selasphorus, with CAHU being the shortest member of the genus. In BTHU, P9-P10 are much narrower than the other primaries. Photos show no such narrowing, thus pointing to CAHU. I do not have photos of the spread tail but hope that other photographers may. This hummingbird was photographed in a garden in Dickinson, North Dakota on July 27, 2021. At the time, it was casually identified as a Ruby-throated Hummingbird. Although seen by several birders who were there to see a stray Rufous Hummingbird in the same garden, no one that I am aware of spent much energy looking at this bird. After going through some of my photos of that bird last evening, I believe it best fits Calliope. At the time, none of the 5 birders there commented on the bird's size. Later one of them said it appeared smaller than the attendant RUHU.
テクニカル・インフォメーション
- モデル
- Canon EOS R5
- レンズ
- RF800mm F11 IS STM + EXTENDER RF1.4x
- ISO
- 32000
- 焦点距離
- 1120 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/16.0
- シャッタースピード
- 1/4000 sec
- 大きさ
- 6122 pixels x 4083 pixels
- オリジナルのファイルサイズ
- 7.47 MB