° 1914 j SwARTH, California Forms of P sail ri par us. 507 



No. 2531 ; adult male, in worn and faded plumage; San Jacinto 

 Mountains, California; May 28, 1908. Pileum, buffy-brown; 

 back, a somewhat clearer gray than in the fresh plumage of no. 1623 

 (described above). Under parts more distinctly whitish, with the 

 darker drab color practically limited to a small area on the sides. 

 Rectrices and remiges noticeably faded and frayed. 



Psaltriparus minimus californicus. 



No. 21059; ju venal female, in fresh, practically unworn, plumage; 

 Weldon, Kern County, California; July 5, 1911. Pileum, buffy- 

 brown ; back, light grayish-olive. As compared with minimus, the 

 upper parts are less brownish, and the under parts are of a clearer 

 gray, with less dusky suffusion. The cap on the pileum is less 

 sharply defined on the sides of the head. 



No. 23319; male in first winter plumage (immaturity deter- 

 mined from condition of skull); Blue Canyon, Placer County, 

 California; October 17, 1912. Pileum, fuscous; dorsal surface of 

 body, dark olive-gray; ventral surface much paler — chin, throat, 

 and upper breast, almost pure white, darkening to drab-gray on 

 lower breast and abdomen. 



Two adult males and another immature taken at the same time 

 and place, are practically indistinguishable in coloration. A third 

 immature male of the same series is appreciably darker, however; 

 pileum, chfetura drab; back, deep mouse gray; under parts less 

 whitish and more dusky. A distinguishable feature separating 

 this exceptionally dark colored example of californicus from mini- 

 mus, is that while in the latter the darker colors tend more toward 

 the brownish hues, in this bird the colors are more blackish. Al- 

 though it is unusually dark colored, it is quite unlike any example 

 of minimus at hand. 



Psaltriparus plumbeus. 



No. 5884 (Swarth coll.); male, in fresh, winter plumage; Hua- 

 chuca Mountains, Arizona; October 12, 1907. Pileum, neutral 

 gray; rest of upper parts grayish-olive. Under parts, whitish, with 

 a slight dusky suffusion. A bro%vnish colored area, including ear 



