1
Fauna Boreali-Americana, or the Zoology of the Northern Parts of British America. Part II., containing the Birds. By W. Swainson, Esq, F.R.S. and John Richardson, Esq., M.D. F.R.S., &c. 4to. 253 pages, with 50 coloured plates, and
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Flocks of Ptarmigans, when pursued by the jar-falcon, endeavour to save themselves by plunging instantly into the loose snow, and making their way beneath it to a considerable distance.
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Or Grouse.
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The adventurous travellers to the Source of the Missouri.
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See the Rhinoceros Bird, page 312.
