最終更新日:2022/12/24
This bird has the distinguishing feature of being unlike any of the grouse family, being gizzardless, having no muscular development of that character, but a membranous sac in its place.
編集履歴(0)
This bird has the distinguishing feature of being unlike any of the grouse family, being gizzardless, having no muscular development of that character, but a membranous sac in its place.