BIRDS — PICIDAE — CENTURUS UROPYGIAUS. 



Ill 



and better defineil. The white of the under parts is of a more smoky tinge, with a general 

 jellowish shade. The gamboge of the abdomen is darker. The tibia is finely biineil trans- 

 versely with black. The rump and upper coverts are white, the inner web of the inner featlier 

 barred witli white. The I'omale is similar, but lacks tlie anterior half of the criiuson of the 

 crown. 



A skin (No. 9085) labelled Centurus hi/popolius, (Wagl.) by Verreaux, agrees perfectly with 

 the present species. It is, however, very distinct from the true hypopolius of Wagler in the 

 original description in Isis. 



List of specimens. 



CENTURUS UEOPYGI ALIS, B a i r d . 



Gila Woodpecker. 



Ctnturus wopygialis, Baird, Pr. A. N. Sa Ph. VII, June, 1854, 120. (Bill Williams' river, N. M.) 

 Cenlurua hypopolius, (Bp.) Pccheras, Rev. et Mag. J853, 163. (iVot I'icus {Centurus) hypopolius, Wagler.) 

 Zebrapicus kaupii, Maluerbe, 1855.= — (Sclater in leUer.) 

 Centurus sulfureiventer, Reichenbach, Handbuch, vi, Picinae, Oct. 1854, 410, figs. 4411, 4412. 



Sp. Cu. — Third, fourth, and fifth quills longest, and about equal. Back, rump, and upper tail coverts transversely barred 

 with black and white, purest on the two latter. Head and neck all round pale dirty brown, or brownish ash, darkest above. A 

 small sub-quadrate patch of red on the middle of the crown, separated from the bill by dirty white. Middle of the abdomen 

 gamboge yellow ; under tail coverts and anal region strongly barred witii black. First and second outer tail featiiers banded 

 black and white, as is also the inner web of the inner tail feather ; the outer web of the latter with a white stripe. Length, 

 about 9 inches ; wing, 5. 



Female with the head uniform brownish a.sli, without any red or yellow. 



Hab. — Lover Colorado river of the West. 



This very distinct species combines the peculiar characteristics of both C. earolinus and 

 Jlaviventris. The tail is marked almost precisely like the former, except that the first and second 

 outer feathers are banded across with black and white, instead of this being confined to the 

 outer, and less distinct. It differs in the yellow belly and restricted small patch on the crown. 

 It agrees vrith flavivejilris in the color of the abdomen and in the small quadrate patch of red 

 on the crown ; it differs, however, in lacking the orange yellow patch on the nape and the 

 gamboge band before the eyes. The rump and upi^er coverts are banded white and black, not 

 pure white ; the innermost tail feather is banded and streaked with white, not uniform black. 

 The region about the thighs and arms is much more strongly barred. The head and under 

 parts are more smoky brown in tinge. The bill is considerably more slender. 



Specimens do not vary much. Sometimes there is a smoky brown wash on the baiik. In one 

 female from the Gila river the head is considerably lighter, with a tinge of yellow. 



