tan-crowned : 無料・フリー素材/写真
tan-crowned / qmnonic
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | The White-throated Sparrow comes in two color forms: white-crowned and tan-crowned. The two forms are genetically determined, and they persist because individuals almost always mate with a bird of the opposite morph. Males of both color types prefer females with white stripes, but both kinds of females prefer tan-striped males. White-striped birds are more aggressive than tan-striped ones, and white-striped females may be able to outcompete their tan-striped sisters for tan-striped males. White-throated Sparrow - All About Birds |
| 撮影日 | 2013-01-11 11:28:32 |
| 撮影者 | qmnonic , Toronto, Canada |
| タグ | |
| 撮影地 | New York, New York, United States 地図 |
| カメラ | Canon EOS REBEL T1i , Canon |
| 露出 | 0.002 sec (1/500) |
| 開放F値 | f/5.6 |
| 焦点距離 | 400 mm |