BlllDS OF NOETH AND MIDDLE AMERICA. 



291 



flgs. 11-13 (eggs).— Nbheling, Our Native Birds, etc., ii, 1896, 315.— Bruner, 

 Eep. Nebr. Hort. Soc. for 1896 (1898), 118 (West Point; Norfolk; Harrison; 

 Cherry County; breeding); Proc. Nebr. Orn. Uni(jn, sec. ann. meeting, 

 1901, 54 (Cherry and Sioux counties, n. w. Nebraska, breeding).— Clarke, 

 Auk, XV, 1898, 274 (Odessa, e. Ontario, 3 specs.).— Mitchell, Auk, xv, 1898, 

 309 ( San Miguel Co ., New Mexico, breeding at 7 , 000 to 1 2, 000 ft. ) . —McGregor, 

 Auk, xvi, 1899, 78 (Alturas, Modoc Co., n. e. California, abundant).— Mer- 

 EiAM, North Am. Fauna, no. 16, 1899, 118 (e. side Shasta Valley, n. Cali- 

 fornia, 1 spec, Sept. 29).— Bates, Proc. Nebr. Orn. TJn., sec. ann. meeting, 

 1901, 74 (Chadron, n. w. Nebraska, breeding).— Fleming, Auk, xviii, 1901, 

 40 (Port Sydney, Ontario, 1 spec, summer, 1887). — Fisher (W. K.), Condor, 

 iv, 1902, 11 (Mono Lake, s. e. California, Sept.). — Bailey (Florence M.), 

 Handb. Birds W. U. S., 1902, 27,0, pi. 



Plica] pica hudsonica Ridgway, Man. N. Am. Birds, 1887, 352. 



Pica mdanokuca (not of Vieillot) Audubon, Synopsis, 1839, 152; Birds Am., oct. 

 ed., iv, 1842, 99, pi. 227.— Cabot, Proc. Post. Soc N. H., ii, 1845, 73 (Mich- 

 igan; crit). — McCall, Proc. Ac. Nat. Sci. Phila., 1851, 217 (w. Texas, lat. 

 29° 15', Nov.). 



PICA NUTTALLI Audubon. 



YELIOW-BILLED MAGPIE. 



Similar in coloration to ^. pica hudsonin, but bill and bare orbital 

 skin bright yellow, and size decidedly less." 



Adult male.— Jjength (skins), 381-443.5 (406.5); wing, 181.5-196.5 

 (187.5); tail, 229-254 (237); exposed culmen, 30.5-32.5 (31.5); depth 

 of bill at nostrils, 12-13 (12.5); tarsus, 43.5-49.5 (47.5); middle toe, 

 22.5-25 (23). » 



Adult female.— Length (skins), 409-451 (423.5); wing, 182-194.5 

 (186.5); tail, 230.5-249.6 (239); exposed culmen, 30-31 (30.6); depth 

 of bill at nostrils, 12; tarsus, 44.5-50 (48); middle toe, 22.5-26.5 

 (23.5).'^ 



"The average measurements of P. nuttalli agree more nearly with those of P. p. 

 pica than with any other form, comparing with the latter as follows: 



&Six specimens. 

 <' Seven specimens. 



