BIRDS OF NORTH AND MIDDLE AM?:RICA. 



249 



Adult female.— Ijeugth (skins), 200-212 (204.3); wing, 95-101 (98.5); 

 tail, 98-101 (98.5); exposed ciilmen, 13-14.5 (13.8); tarsus, 26-27 

 (26.6); middle toe, 16-17 (16. 3).« 



Southern Mexico, from southern Tamaulipas (Ciudad Victoria; 

 Miquihuana)" and Territoi'v of Tepic (Tepic;" Santiago") southward 

 through States of Hidalgo (Irolo;" Tula), Vera Cruz (Orizaba, etc.), 

 Puel)la (Chalchicomula),^ Mexico (Ajusco; Amecameca; Tlalpam), 

 Jalisco (Mascota), etc., to Oaxaca. 



(?) Lanius carolinensis (not of Wilson) Swainson, Philos. Mag., n. s., i, 1827, 368 



(table-land of Mexico); Isis, 1834, 784. — Lichtenstein, Preis-Verz. ]\Iex. 



Vog., 1830, 2; Journ. fiirOrn., 1863, 58 (reprint). 

 (?) Lanius ludoricianus (not of Linnjeus) Bonaparte, Proc. Zool. Soc. Lond., 



1837, 112 (Mexico). 

 i[am'r^s] mexicanns Bkeiim, Journ. fiir Orn., ii, Mar., 1854, 145, 148 (Mexico). — 



Cabanis, Mus. Hein., i, 1850, 74, part (Mexico). 

 (?) Lanius mexicanus Sclater,, Proc. Zool. Soc. Lond., 1859, 375 (Oaxaca; Feb., 



Mar.); 1864, 173 (crit.); Cat. Am. Birds, 1862, 46.— Duces, La Naturaleza, 



i, 1869, 141 (Guanajuato). 

 Lanius excubitoroides (not L. excubitorides Swainson) Sclater, Proc. Zool. Soc. 



Lond., 1864, 173 (City of Mexico). 

 [Lauiusl excubitoroides Scl.\ter and Salvin, Nom. Av. Neotr., 1873, 13, part. 

 CoUurio excubitoroides Baird, Review Am. Birds, 1866, 445, part. — Su.MicnRAST, 



Mem. Boat. Soc. N. H., i, 1869, 548, part, at least (plateau and temperate 



regions. Vera Cruz). 

 (?) Lanius ludodcianus excubitorides Cox, Auk, xii, 1895, 398 (foot of Mount 



Orizaba, Vera Cruz, summer). 



LANIUS LUDOVICIANUS GAMBELI Ridgway. 

 CALIFORNIA SHRIKE 



Most like Z. /. rnigranx in coloration, and sometimes not distin- 

 guishable as to coloration of upper parts; l)ut averaging slightly 

 darker and duller gra}' above, with the upper tail-coverts usualh' 

 abruptly white or much paler gray, as in L. I. exciibitorldcj<,' under 



« Six specimens. 



Specimens from the Territory of Tepic and State of Jalis(!0 have larger bills than 

 those from more eastern localities, average measurements of the two series being as 

 follows: 



I am unable to discern any difference in coloration. 

 & Breeding specimens examined from these localities. 



