ML109123991
Cliff/Cave Swallow Petrochelidon pyrrhonota/fulva
投稿者
Dan Scheiman この投稿者による視聴覚メディア プロフィール
日付
場所
Millwood Lake--Saratoga Landing
Hempstead, Arkansas, United States
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
Initially submitted as a possible leucistic Cliff Swallow, Charles Mills thinks it could be an immature Cave Swallow based on photos he has taken of immature Cave Swallows found in the area. He states "Given the resolution, I can’t be certain but I think it’s as likely a juvie Cave Swallow if not more so than a Cliff. I’m thinking this mainly because of the narrow superciliary, the dusky auricular smudge, the hint of burnt orange in the forehead and the generally unmarked throat. Typical Cliff Swallow juvies appear darker on the head and throat. That being said, I have seen juvie Cliffs with similar foreheads but I can’t recall having seen any with an equally pale throat."
テクニカル・インフォメーション
- 大きさ
- 800 pixels x 1204 pixels
- オリジナルのファイルサイズ
- 373.3 KB