sheath·bill (sh th b l )n. Either of two pigeonlike shore birds (Chionia alba or C. minor) of Antarctic regions, having white plumage and a horny covering on the base of the bill. |
sheathbill [ˈʃiːθˌbɪl]
n
(Life Sciences & Allied Applications / Animals) either of two pigeon-like shore birds, Chionis alba or C. minor, of antarctic and subantarctic regions, constituting the family Chionididae: order Charadriiformes. They have a white plumage and a horny sheath at the base of the bill
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