sheathbill
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sheath·bill
(shēth′bĭl′)n.
Either of two white shorebirds (Chionia alba or C. minor) of Antarctic regions that resemble pigeons and have a horny covering on the base of the bill.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
sheathbill
(ˈʃiːθˌbɪl)n
(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
sheath•bill
(ˈʃiθˌbɪl)n.
either of two white, pigeonlike shorebirds, Chionis alba or C. minor, of the Antarctic, having a horny sheath covering the base of the short bill.
[1775–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.