72 
THE CONDOR 
I VOL. V 
examples from the same general region (i. e., Utah and Montana), one of them be- 
ing actually from the same locality (Fort Bridger).” It would appear from the 
foregoing quotations that the chief objection to the recognition of a Pacific coast 
race is the inconstancy and comparative slightness of the distinguishing characters. 
For the past three years I have taken pains to personally gather a series of 
California yellow warblers, and these, together with similar material kindly 
loaned me by Mr. T. J. Hoover and Mr. F. S. Daggett, amount to ninety seven 
specimens. The former has also provided a series of eastern birds, and the Na- 
tional Museum, through Dr. C. W. Richmond, has granted me the use of a most 
requisite series of yellow warblers from the Rocky Mountain region. Even a 
superficial view of the above material suffices to impress one wdth the conspicuous 
peculiarities of the California race, as distinguished from the bird of the Rocky 
Mountains and eastward. These differences are surely of as much value as those 
marking the lutescent warbler, long-tailed chat, golden pileolated warbler, 
Calaveras warbler (much more so!), or many others of the better-known subspecies 
that could be mentioned. 
As to the application of the name morconii the remarks of Mr. Brewster seem 
wholly correct. Coale’s name was based on individual extremes of De7idroica css- 
tiva cBstiva, as well as on examples of the actually different race from we.st of the 
Sierra Nevada Mountains. The tj’pe was undoubtedly one of the former, hence 
the necessity of retiring the name morcomi to the synonymy of cestiva, and sup- 
plying the California race with a new name. This I do, commemorating in the 
name selected an ornithologist toward whom we feel grateful for his extensive and 
careful work on western birds. 
Dendroica aestiva brewsteri new name. 
Subspecific Characters. — Resembling Dendroica cestiva cestiva, from which it differs in 
smaller size, paler (or less brightly 3'ellow) coloration, and, in the male, narrower streaking on un- 
der surface; differs from Dendroica cestiva rubifrinosa in much smaller size and j’ellower colora- 
tion, and from De?tdroica cestiva sonorana in smaller size and much darker coloration. 
Types. — ^ ad.; No. 4701 Coll. J. G.; Palo Alto, California; May 18, 1901. $ ad.; No. 4154 
Coll. J. G.; Palo Alto, California; May 14, 1900. 
(The types were carefully selected to represent the average manifestation of subspecific char- 
acters. ) 
DiiSCRiPTiON OF Types. — Mate. Whole mantle and hindneck yellowish olive-green (the 
feathers with faintly more j^ellowish edgings), becoming lemon yellow on rump, and subdued 
Indian ^-ellow on crown and forehead; wings and tail “fuscous” edged with canary yellow; sides 
of head and throat lemon yellow; rest of lower parts deepening into gamboge yellow; breast and 
sides “narrowly” streaked with chestnut (approaching liver brown), these streaks approximating 
one millimeter broad at widest. Female. Upper parts olive-green, becoming more yellowish on 
rump and forehead; lower surface pale canary yellow, weakening to primrose yellow on lores, 
throat and belly; sides faintly and ver\- narrowly streaked with pale liver brown. 
Measurements (in inches). — 
Wing. 
Tail. 
Wing. 
Tail. 
Average 
2.45 
1.96 
30 5 ? Average 
2-33 
1-93 
Minimum 
2.25 
1.80 
Minimum 
2.18 
1.70 
Maximum 
2.61 
2.20 
Maximum 
2.48 
2.07 
Distribution. — Transition and Upper Sonoran Zones west of the Cascades and Sierra Nevada 
from Oregon to Southern California. Specimens examined from Oregon; Salem*; and California: 
Siskiyou, Battle Creek, Redding, Amador City, Palo Alto*, Santa Cruz, Los Angeles*, El Monte, 
Pasadena*. 
Individuae Variation. —In the matter of streaking in the male there is surprising constancy. 
Among the fifty-four adult males of brewsteri at hand, but one specimen (No. 1849, Coll. T. J. H., 
Palo Alto, May 7, 1898) is so heavily streaked as to resemble in that respect even the lightly 
streaked extremes among thirty-seven males of true cestiva. This specimen is also brighter yel- 
low than usual, and closely matches No. 10983, Coll. U. S. N. M. (Fort Bridger) which is a topo- 
