投稿者
Brian Daniels この投稿者による視聴覚メディア
日付
場所
酒田市--飛島 (Sakata--Tobishima (island))
Sakata, Yamagata, Japan
この場所の視聴覚メディア 図解チェックリスト- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
Two or three were reported from Tobishima during Golden Week. This is a rare but annual spring migrant to islands in the Sea of Japan such as Hegura-jima where small flocks of up to five birds have been reported (Brazil 1991). Two to three were foraging in the grass field surrounding the heliport at the north end of Tobishima throughout our stay. On May 7, we found three more in the agricultural fields at the south end of the island and tallied our high count of five. Note the long primary projection extending beyond tertials. This is a key feature, apparently, separating the Syke's Short-toed Lark from the eastern most race (longipennis) of the Greater Short-toed Lark (C. brachydactyla).
テクニカル・インフォメーション
- モデル
- Canon PowerShot SX50 HS
- ISO
- 400
- 焦点距離
- 215 mm
- フラッシュ
- Flash did not fire, auto
- Fストップ
- f/6.5
- シャッタースピード
- 1/1000 sec
- 大きさ
- 4000 pixels x 3000 pixels
- オリジナルのファイルサイズ
- 5.45 MB