American Heritage Dictionary
(1)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Officials did find several bird species nesting, including Aleutian cackling geese, ptarmigan, peregrine falcons and black oystercatchers.
FEARS were raised yesterday that the ptarmigan, one of Scotland's most iconic birds, has completely vanished from its most southerly Scottish outpost on the isle of Arran.
Wildlife consists of elk, mule deer (distinguished by their large ears), mountain lions, black bears, bobcat, ptarmigan, and snowshoe rabbit.— The Denver Newspaper Agency YourHub.com Stories
I can't see anything that looks remotely like a ptarmigan.— authorblog

American Heritage Dictionary (1)
Century Dictionary (1)
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