Chen caerulescens caerulescens: Географическая информация
Географический отдел:
Europe & Northern Asia (excluding China)
Юрисдикция/происхождение:
Alaska / Native
Chen caerulescens caerulescens: Комментарии
Комментарий:
Placed variously in Anser or Chen, depending on whether or not the latter is considered a subgenus/synonym of the former. For the moment, ITIS is following the AOU, which currently (2006) retains Chen as a separate genus