American Herring x Lesser Black-backed Gull (hybrid) - Bill Sharkey

ML633403402

American Herring x Lesser Black-backed Gull (hybrid) Larus smithsonianus x fuscus

報告

投稿者

日付

場所

Prairie View Landfill
St. Joseph, Indiana, United States
この場所の視聴覚メディア 図解チェックリスト
地図
地図 座標: 41.49836, -86.1755703
年齢
指定なし
性別
指定なし

観察結果の詳細

Two distinct medium gray mantled gulls - each with very different features but inconsistent with pure AHGU AND LBBG. One bird in breeding plumage and one (seen on 3-26-25 initially) with asymmetrical mirrors on dark rectangular wingtips. Photos of both. The birds have been discussed with regional gull specialists who agree with putative hybrid assessment of each. The flight photo with a herring gull and a darker backed gull shows the bird also seen on 3-26. Note the single mirror on the left wing and no mirror on the right.

テクニカル・インフォメーション

大きさ
2048 pixels x 1366 pixels
オリジナルのファイルサイズ
1.09 MB