ハワイガンMeanings1nounHawaiian goose; neneusually written using kana aloneRefers to the bird species Branta sandvicensis, endemic to Hawaii. The katakana form ハワイガン is the most common written form.ハワイガンはハワイの州しゅう鳥ちょうです。The nene is the state bird of Hawaii.ハワイガンは絶ぜつ滅めつ危き惧ぐ種しゅに指し定ていされています。The Hawaiian goose is designated as an endangered species.