ML36021141
投稿者
日付
場所
- 年齢と性別
- 未成鳥 性別不明 - X
観察結果の詳細
Immature. Large, chunky sparrow-like bird. Very drab brown, lacking yellow typical of an adult female and first noticed due to size (slightly larger than nearby SOSP) and sustained perch at top of tall cornstalk. The pale throat framed by dark lateral throat stripes then caught my attention. There was a faint band of streaking on sides and across breast, and the bill was fairly long and heavy and pale in coloration. Visible in the photos (heavily cropped) is a distinct pale supercillium that appears to be yellowish in front of the eye and extends well behind the eye. This facial pattern, along with dark lateral throat stripes outlining the white throat, the shape and color of the bill, and the bird's size point to Dickcissel over Indigo Bunting. In addition, as the bird took off and flew back into the cornfield, I heard the distinctive wet, burry, buzzing flight call note.
テクニカル・インフォメーション
- モデル
- Canon EOS REBEL T3i
- レンズ
- EF70-300mm f/4-5.6 IS USM
- ISO
- 500
- 焦点距離
- 300 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/8.0
- シャッタースピード
- 1/640 sec
- 大きさ
- 2539 pixels x 1693 pixels
- オリジナルのファイルサイズ
- 978.43 KB