yS OiiKKiioLSRR, New Subspecies of Dendroica. I ,^^^ 



from Nushagak (LL S. N. M. No. 86517), and one from the Yukon 

 River (U. S. N. M. No. 54425) are very slightly more yellowish 

 above than the birds from Kadiak (the type locality), and have also 

 the wing edgings somewhat brighter; but these aberrant features 

 are apparently of quite trivial importance. Of three breeding birds 

 from Victoria, British Columbia, two have a fairly well-marked 

 yellow crown-patch, though this is somewhat obscured by olive- 

 green tips to the feathers ; but all three specimens are fully as dark 

 above, and in every other respect so much like rubigifwsa that 

 they are without hesitation referred to this form. 



Summer birds from Great Slave Lake (Fort Resolution and 

 Fort Rae) are, however, quite typical of D. a;, morcomi; as are also 

 specimens from northern California (Baird and Red Bluff), and 

 one example from Fort Steilacoom, Washington (U. S. N. M. No. 

 7643). [t thus would seem to be indicated that the breeding 

 range of riibiginosa is almost, if not entirely, confined to Alaska 

 and British ('olumbia. 



Three Yellow Warblers collected by Dr. Edgar A. Mearns at 

 Mountain Spring, San Diego County, California, May n, 1894, 

 though rather more yellowish above than average Alaskan speci- 

 mens, are closely matched by the birds from British Columbia, 

 and are with little doubt referable to riibiginosa. A spring speci- 

 men from San Antonio, Texas, taken May 3, 1889 (U. S. N. M. No. 

 152396), and one collected by Mr. Richmond on the Escondido 

 River, Nicaragua, May 5, 1882 (U. S. N. M. No. 128416), are 

 equally similar, and both belong apparently to the race at present 

 under consideration. 



Among the 53 North American specimens of Dendroica ccstiva 

 and Deridroica (C. morawii which have been examined in this con- 

 nection, there are but three, with regard to whose identity, so far 

 as rubiginosa is concerned, any uncertainty might exist. One of 

 these three examples is from Wheatland, Indiana, and approaches 

 the Alaskan race by reason of its almost uniform coloration above, 

 but the olive green portions of its plumage are, upon comparison, 

 seen to be much more suffused with yellowish than in rubiginosa^ 

 thus leaving no question of its correct identification with D. (zstiva. 

 The two other aberrant specimens are from Calais, Maine, and 

 Moose Fort, Ontario, respectively ; and while in slight details 



