ML115204401
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
視聴覚メディア・ノート
confusing bird, initially thought this was a juvenile white-winged Tern, then after seeing photo recorded as Whiskered Tern because of bill size and large black nape, but clear dark carpal bar and saddle make me change again to Black-winged. I also noticed that all juvenile Whiskered Terns had black legs, and this one more reddish legs, but not sure if this is an exclusive characteristic for White-winged juveniles. Need to do some more research on this. And changed it back again after some research. Bill and structure of head makes me think this is a Whiskered, but still not completely confident that I’m always able to make the right call on these juveniles.
観察結果の詳細
56 at roost, at least 460 at pier, spent some time to look at the different molting stages of adult and juvenile birds on the poles.There were only 2 birds out of 180 with still a largely red bill and 6 juveniles.
テクニカル・インフォメーション
- モデル
- Canon PowerShot SX60 HS
- ISO
- 100
- 焦点距離
- 247 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
- 1/500 sec
- 大きさ
- 4608 pixels x 3456 pixels
- オリジナルのファイルサイズ
- 2.13 MB