1865 J. K. Lord in 7 113 It was not the cry of the rock whistler (A[r]ctomys), that sound I knew too well.
1866 J. K. Lord II. ix. 190 The Hoary Marmot (Arctomys okanaganus), or, as it is styled by the fur-traders, the ‘Rock Whistler’, lives on the very summit of the Rocky Mountains.