Either one of two species of birds composing the genus
Chionis, and family
Chionidæ, native of the islands of the Antarctic seas. [
1913 Webster]
" They are related to the gulls and the plovers, but more nearly to the latter. The base of the bill is covered with a saddle-shaped horny sheath, and the toes are only slightly webbed. The plumage of both species is white."
[1913 Webster]