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hemisphere, and the last is especially American, though perhaps a straggler to Europe.
Tristram (Fauna and Flora of Palestine, p. 139) regards it as but a straggler from central Arabia, though we have little information as to its distribution in that country.
As a straggler it has occurred within the Arctic Circle (as on the Varanger Fjord in Norway), as well as in Iceland and even Greenland; while it not unfrequently appears in Madeira and the Azores.
It also occurs in Britain as an occasional straggler.