ML618324360
Altamira x Audubon's Oriole (hybrid) Icterus gularis x graduacauda
投稿者
日付
場所
- 年齢
- 指定なし
- 性別
- 指定なし
観察結果の詳細
Reports of this hybrid combination go back to 1988 when a mixed pair was noted at a nest in Ricardo, Texas. The first presumed hybrid (nicknamed "Smudgy") was seen in 1998. Since then several presumed hybrids have been seen at Bentson Rio Grande SP and elsewhere in the area where the two overlap. Audubon's Oriole is increasingly scarce in Texas while Altamira Oriole has been increasing. It has been suggested that these presumed hybrids may be the consequence of lack of mate choice by Audubon's Orioles. The two species are not particularly closely related although they are both American Orioles in the genus "Icterus." Reference: Patrikeev et al. 2008. Interactions and Hybridization between Altamira and Audubon 's Orioles in the Lower Rio Grande Valley. Birding 40 (2):42-46
テクニカル・インフォメーション
- モデル
- Canon PowerShot SX70 HS
- ISO
- 400
- 焦点距離
- 247 mm
- フラッシュ
- Flash did not fire
- Fストップ
- f/6.5
- シャッタースピード
- 1/320 sec
- 大きさ
- 1024 pixels x 932 pixels
- オリジナルのファイルサイズ
- 422.89 KB