Publisher's Synopsis
Excerpt from University of California Publications in Zoology, 1913-1916, Vol. 12: With 22 Plates
The throat may be as purely and extensively white as in canadensis, there may be a few ecks of black along the median line, or there may be a' solid black bar. In one or two instances this bar is of such Width that the white cheek markings are reduced to small, oblong patches (in no. 22026 they measure 44 by 15 mm) These may be thickly speckled with black.
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