554 U.S. NATIONAL MUSEUM BULLETIN 237 part i 



mew, varied with the sharp 'peep/ from a neighboring bush." After 

 leaving the nest the juveniles are fed by their parents for an indefinite 

 period. Immatures were reported by J. E. Law (1926) to be sur- 

 prisingly tame at a feeding station in the San Bernardino Mountains. 

 Remarking on one bu-d that visited a feeding box inside his cabin, 

 Law says "breakfast at dawn was the program, and it seemed not 

 to matter to the bird if my fingers were in the box, nor if its tail 

 brushed my fingers." 



Plumages. — According to F. M. Chapman's (1914) description, 

 "the adult male and female are alike in color, and there is essentially 

 no difference between their summer and winter plumages. The 

 young male, also, after the fu'st post-juvenal molt, resembles its 

 parents; but the young female * * * in corresponding (first winter) 

 plumage has the chestnut crown-cap largely concealed by the grayish 

 tips of the feathers, and the back is grayer than in the adult." 

 Apparently some individuals among first-year males are also rather 

 dully colored, for H. S. Swarth (1904) mentions that a "male bird, 

 presumably of the previous year, taken on May 8, 1903, has hardly 

 a trace of the rufous crown, and is generally of a duller color and with 

 the markmgs less sharply defined than in the fully adult bhd." 



K. C. Parkes (1957) remarks that the juvenal plumage, which is 

 streaked with dusky blackish both dorsaUy and ventrally, "conforms 

 precisely to the Pipilo pattern: uniformly streaked above, with no 

 indication of the contrast in color between back and crown of the 

 adult; unstreaked on the throat (which is white in the adult) ; streaked 

 on the remainder of the underparts, with the markings heaviest across 

 the chest, where the adult has a gray band with a poorly-defined 

 posterior edge." F. M. Chapman (1914) says: "At the post-juvenal 

 molt, only the wing-quiUs, primary coverts and tail-feathers of this 

 plumage are retained, when the young male * * * acquires a plumage 

 resembhng that of the adults, while in the young female the crown-cap 

 is absent." 



Among juveniles collected by J. GrinneU and H. S. Swarth (1913) 

 in the San Jacinto area of southern California, from July 1 to August 4, 

 "some [were] in full juvenal plumage, and others variously advanced 

 in the post-juvenal molt. An immature female secured August 2 

 * * * has already acquired complete first winter plumage." 



F. M. Chapman (1914), reports that "the prenuptial or spring molt 

 appears to be confined to the throat and anterior parts of the head. 

 Probably the immature female acquu'es fresh chestnut feathers in the 

 crown, and with the wearing away of the grayish tips of the winter 

 plumage her crown-cap becomes like that of the adult. Aside from 

 this, the summer plumage differs from winter plumage only through 



