BREWSTER : BIRDS OF THE CAPE REGION, LOWER CALIFORNIA. 147 



Junco bairdi Ridgw. 

 Baird's Junco. 



Junco hairdi (Belding MS.) Ridgway, Proc. U. S. Nat. Mus., VI. 1883, 155, 156 

 (orig. descr. ; types from Laguna), 158, footnote (crit. ; S. Lower Calif.), 348 

 (measurements of birds from Laguna and Victoria Mts.); Birds N. and 

 Midd. Amer., pt. I. 1901, 294, 295 (descr.; Victoria Mts. ; Mount Miraflores, 

 etc.). Belding, Proc. U. S. Nat. Mus., VL 1883, 346, 348 (Victoria Mts.). A. O. 

 U., Check List, 1886,276, no. 571. Sharpe, Cat. Birds Brit. Mus., XII. 1888, 

 653 (descr.; Lower Calif.). Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 

 301 (Victoria Mts.; La Laguna) ; Zoe, IL 1891, 198 (Victoria Mts.). 



Junco hiemalis bairdi CouES, Key N. Amer. Birds, 4tii ed., 1894, 876 (descr.; Lower 

 Calif.). 



J.[unco] bairdi Ridgway, Man. N. Amer. Birds, 2d ed., 1896, 425 (descr. ; mts. of 

 S. Lower Calif). 



[Junco iiisularis] var. bairdi Dubois, Synop. Avium, fasc. IX. 1901, 629 (Basse- 

 Californie). 



The female is uniformly smaller than the male, and her general coloring, 

 particularly the ash of the head and the cinnamon buff of the sides, is duller 

 and paler. The rufous brown of the back is also much lighter than in the 

 male, being scarcely deeper than the color on the sides. The lores are dusky 

 instead of blackish. 



JFinter phunage : — My series contains only three .specimens in winter plu- 

 mage. Of these, a male, taken on November 28, is considerably deeper and 

 richer colored than are any of the spring birds, and the rufous brown of the 

 neck is more strongly tinged with olive, while the crissum and under tail 

 coverts are distinctly buft'y. The cinnamon of the sides, however, is duller 

 than in spring. The other two specimens are females. They differ from the 

 male just described only in having the ash of the throat much lighter, the buff 

 of the crissum and under tail coverts deeper, the brown of the back brighter 

 and more rufous. They are very much richer colored than any of the spring 

 females. 



IndividvMl variations : — The brown of the upper parts varies from faded 

 cinnamon brown to deep cinnamon rufous — almost chestnut brown in some 

 specimens ; the color of the sides from dull pale cinnamon to light cinna- 

 mon rufous. There is a tendency to olivaceous tipping on the feathers of 

 the occiput and nape as well as, sometimes, on those of the crown and 

 forehead. A specimen taken on May 24 has a narrow but well-defined .slaty 

 black collar extending from the sides of the neck across the forward part of 

 the back or the lower part of the nape. Two other birds, killed at about the 

 same time, also show traces of this collar. In all three the slaty black is con- 

 fined to the extreme tips of the feathers. Some of the duller males are dis- 

 tinguishable from the brightest females only by the clearer tone of the ash 

 on the top and sides of the head. 



