362 U.S. NATIONAL MUSEUM BULLETIN 23 7 part i 



LEUGOSTICTE TEPHROCOTIS WALLOWA Miller 



Wallowa Rosy Finch 



Habits 



Alden H. Miller (1939a) gave the above name to the rosy finch 

 that is known to breed only on the Wallowa Mountains of Oregon, 

 its winter range being undetermined. He gives it the following 

 subspecific characters: 



Similar to L. t. tephrocotis, but cinnamon brown of ventral surface duller and 

 more sooty, the feathers bearing either dusky areas or dusky shaft streaks imme- 

 diately distal to the downy gray basal parts. Black throat area grades less 

 abruptly into breast. Streaks of back somewhat darker and broader and feather 

 margins distinctly more neutral brown, with less yellow and red-brown pigment. 



Wallowa differs from L. t. dawsoni of the Sierra Nevada of California in slightly 

 sootier under parts, and in much darker, less tawny dorsal surface. Some in- 

 dividuals of wallowa are almost indistinguishable from dawsoni ventrally but the 

 dark, broad dorsal stripes of walloiva are in no instance closely approximated in 

 dawsoni. Wallowa differs from dawsoni, as does L. t. tephrocotis, in greater 

 average depth of bill and in more pointed wing tip. 



Distribution 



Range. — Oregon and Nevada. 



Breeding range. — Breeds in Wallowa Mountains of northeastern 

 Oregon. 



Winter range. — Winters south to central western Nevada (Ramsey, 

 Reno). 



LEUGOSTICTE TEPHROCOTIS DAWSONI Grinnell 



Sierra Nevada Rosy Finch 

 plates 19 and 20 



Habits 



Joseph Grinnell (1913) gave the above name to the rosy finch of 

 the Sierra Nevada, "in recognition of the services to Ornithology of 

 WilUam Leon Dawson." He gives it the following diagnostic charac- 

 ters: "As compared with its nearest relative, Leucosticte tephrocotis 

 tephrocotis Swainson, of the northern Rocky Mountain region, in British 

 America and western Alaska: general coloration in all plumages 

 grayer toned, less intensely brown, size shghtly less, the bill being 

 distinctly less in bulk, and wing averaging more rounded; juvenal 

 plumage much grayer especially anteriorly both above and below; 

 breeding females less different; breeding males least different, but 

 stiU perceptibly less vivid in the chestnut about the head." 



