132 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



to brownish olive (still browner on pileiim), the markings on wings 

 and tail as in the male; tawny color of nnder parts paler (varying 

 from rather pale ochraceous-buff to ochraceous), the band across 

 chest more or less indistinct and never (?) uniform blackish or slate 

 color — usually with feathers dusky centrally (more or less concealed) 

 margined with dull ochraceous or buffy grayish; " white of posterior 

 under parts usually (?) relatively more extended than in male. 



Young. — Much like adult female, but under parts more yellowish 

 ochraceous, with feathers of breast and lower throat narrowly mar- 

 gined or tipped with olive or dusky (these markings sometimes indis- 

 tinct), the jugular band sometimes uniform dull olive, oftener with 

 feathers ochraceous centrally broadly margined with olive or dusky.'' 



Adult male.— Length (skins), 214-241 (226); wing, 119-132.5 

 (126.7); tail, 78.5-93.5 (87.4); exposed culinen, 18-23 (20.7); tarsus, 

 29.5-32.5 (31.4); middle toe, 21-23 (22. 1).*^ 



Adult female.—Len^th (skins), 200-242 (224); wing, 119-130.5 

 (124.6); tail, 83.5-90 (87.1); exposed culmen, 19-23 (21.4); tarsus, 

 30-33 (31.7); middle toe, 20-23.5 (22).^' 



a Sometimes the band is nearly, rarely quite, obsolete. 



b Owing to doubt as to the correct sexing of two specimens, I am not sure whether the 

 sexes differ or not in first plumage. Were it not for these two specimens the 

 remainder of the series examined (seven specimens) would indicate (so far as the speci- 

 mens have sex determined) a decided sexual difference, the males having nearly the 

 whole of the lower parts ochraceous and the jugular l)an(l indistinct, the females having 

 the posterior half of the lower parts mostly white, and the jugular band more or less 

 conspicuous. 



c Twenty specimens. 



rf Seventeen sijecimcns. 



Specimens from the Pacific coast slope and interior districts compare in average 

 measurements as follows: 



With a series of one hundred and forty specimens (sixty-seven adult males from the 

 coast district and seven from the interior, forty-two adult females from coast and four- 

 teen from interior localities, besides nine young representing both districts) I have 

 been unable, after very careful comparison, to discover the slightest reason for recog- 

 nizing two forms of this species. The color-characters upon which Mr. Grinnell's 

 separation (Auk, xviii, 1901, 142-145) is based appear to be mainly if not wholly of an 

 individual nature, and occur in different specimens from whatsoever locality they 

 may have been taken. 



