PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 431 



uncommon residents. It occurred to me while in Marysville, in Jnne, 

 that by shooting more young from a family, some light might be thrown 

 on the subject,* but in no case did I succeed in getting more than one. 



[This series is one of great interest, as showing that the so-called 

 "Hybrid Flicker" is by no means confined to the region where the 

 ranges of the true auratm and mexlcanns join or blend. Dr. Cooper re- 

 cords (Orn. Cal. i, p. 412, note) "two or more specimens" from near 

 Oakland, Cal. ; and the writer observed, on several occasions, in the 

 extreme western portion of Nevada, Flickers having pure yellow shafts, 

 and so much resembling, at the distance from which they were observed, 

 the G. auratiis or C. chrysoides, that thej' were doubtfully referred to one 

 or the other of these species (see Orn. 40th Parallel, p. 557). This proba- 

 ble error was based upon geographical considerations, the chances against 

 their being the C. hyhridus being the assumed scarcity of this species 

 west of the Missouri region, taken together with the known tendency of 

 strictly Eastern species to straggle westward, even to the very frontiers 

 of California (e. ^., Tyrannus caroUriensis and Ectopistes mUjratoria in 

 western Nevada), and the possible northward extension of the range of 

 C. chrysoides to the district indicated. 



None of the specimens collected by Mr. Belding have black moustaches, 

 and he says that he has seen none thus marked. He considers the occur- 

 rence of the scai'let occipital crescent quite frequent, however, as is also 

 the admixture of yellow feathers in the wings and tail, or the entire 

 replacement of the red of the one species and the pure yellow of the 

 other by a tint more or less intermediate between the two. One speci- 

 men corresponds very nearly to C. ^^ayresP of Audubon, having red 

 moustaches, gray throat, and yellow shafts ; the latter have a decided 

 orange cast, however, while there is merely a trace of the occipital 

 crescent. The most interestiug s])ecimeu of all is one of Avhich, unfor- 

 tunately, only the wings and tail were sent. In this, the remiges and 

 rectrices are deep red as in typical mexieanus, with the exception of the 

 middle i)air of the latter and one secondary (the corresponding one) of 

 each wing, which are pure gamboge-yellow, without a trace of orange, 

 the contrast being thus very striking. Another specimen, of which only 

 the tail a\ as sent, is similar, except that the middle tail-feathers are pale 

 pinkisli instead of yellow. 



It may be remarked, as a noteworthy fact, that in all tlie specimens 

 sent by Mr.'Belding, the pattern of coloration is perfectly symmetrical, 

 so far as opi)osite sides of the lurd are concerned; that is, Avhen there 

 are one or more feathers of "abnormal" color in one whig or in one-half 

 of the tail, these are rei)resented by corresponding ones on the opposite 

 side. How far this rule will hold good when otlier specimens are ex- 

 amined I do not know, but my oi)inion, based upon my recollection of 



* The secuiiug of the entire family — that is, both the pareius and their young — when- 

 ever the occasion offers, is a much needed Jiid to the di^teruiinutioji of the veal charac- 

 ter of these so-called "hvhrid" Flickers. — K. R. 



