4 Uriivcrsif!/ of ('alifontia PuhUcatious in Zoology. [Vol.7 



Descriptiox. — The sin«ile example I liave of huachncae is 

 appreeial)ly paler than any of the four adult specimens of 

 occidcntaUs available for comparison. The facial discs are gray 

 rather than brown, as in the latter, and the brown of the top 

 of the head and upper parts generally is of a lighter shade than 

 in occidcntaUs, while the white spots on the individual feathers 

 are larger and not so sharplj^ defined. In the exposed portions 

 of the tail the light markings are almost jiure white, and form 

 five sharply defined bars (one of them terminal), across the 

 rectrices; in occidentalis the spots are broken and irregular, 

 seldom reaching to the edge of the feathers. The white spots 

 on the outer webs of the primaries also form broad, well-defined 

 bars, and extend squarely across the vane of the feather, whereas 

 in occidentalis the same spots are much narrower, are usually 

 irregularly triangular in shape, and are of various shades of 

 light brown, white only on the extreme exposed portion. The 

 throat and the median line of the abdomen are pure white. In 

 occidentalis the throat patch is bufltV or grayish in color, and 

 there is practically no unmarked area underneath. The tarsus 

 and toes are pure white, sparsely and irregularly flecked with 

 pale brown, while in occidentalis they are so closely barred with 

 dark brown as to appear almost uniformly of that color. The 

 under tail-coverts are pure white, narrowly barred with pale 

 brown, while in the coast form the heavy brown bars are dis- 

 tinctly broader than the white ones, the latter being sometimes 

 broken into two spots. 



In huachncae the general tone of the underparts is very much 

 lighter than in occidentalis, as the brown colored parts of the 

 feathers are paler in color and more restricted in area, while 

 the white spots are consequently enlarged. Thus an individual 

 feather on the upper breast of occidentalis is dark brown with 

 one, or maybe two, white spots on it, while a corresponding 

 feather on huachucae would be described as white, crossed by 

 two narrow brown bars, one of them terminal. 



Remarks. — Although it is unfortunate that but a single ex- 

 ample of the new form is at hand, pertinent material is so ex- 

 tremely difficult to obtain that it does not seem advisable to wait 

 for additional specimens. Wliile it ma.y seem rash to attach a 



