N0.1271. REVmW OF THE HORNED LARKS— OBERHOLSER. 841 
lighter, more ochraceous on the upper parts as well as across the breast, 
and on the a1)douien dull yellowish or butiV tinged instead of soiled 
white. 
Birds from the islands of San Miguel, Santa Rosa, and Santa Cruz, 
as compared with those from the more southern islands, appear to 
average slighth^ darker al)ove, both on the nape and ])ack, InU this 
difference is too slight and inconstant to ])e worthy of more than pass- 
ing notice. These dark birds represent the maximum diffeivntiation of 
insiilaris, while the birds with rather paler napes and more brownish, 
less blackish backs, carried to apparently the gi-eatest extreme on 
Santa Catalina Island, incline toward (let'ia^ and indicate the main- 
land origin of this insular form. That htmlarix should have been 
diiferentiated toward strlgata is, however, an interesting case of par- 
allel development. By reason of the evident approach to actia from 
island to island, w^hich would in a continental distribution cuhninate in 
complete inosculation, and the noticeable resemblance to xtrtgttta., it 
seems advisable to consider In.ndar/x as a subspecies in spite of its 
island habitat. 
The amount of individual variation in Insular is is great, even in 
birds from the same island, and consists chiefly in the shade of the 
upper parts. The yellow al)out the head and on the throat varies con- 
siderably in its intensity, and not infreciuently tinges the ])reast below 
the jugular crescent, although, in so far at least as present material 
indicates, never suffuses the entire lower surface. The feathers of the 
tibia are often even Cj[uite strongly tinged with yellow. 
One of the males from San Nicolas Island exhibits a curious mal- 
formation of the bill. The maxilla is apparently of normal shape and 
size, but the mandible is ahnost twice as long as it should l)e, l)esides 
being curved sharph' downward, and consideraltly deflected to the right. 
Seventy-two specimens have been examined, all from the following 
islands of the Santa Barbara group: 
Califovnid. — v*^an Clemente Island;* Santa Cruz Island;* San Miguel 
Island;* Santa Rosa Island;* Santa Barbara Island;* San Nicolas 
Island;* Santa Catalina Island.* 
OTOCORIS ALPESTRIS PEREGRINA (Sclater). 
Otocorijif ]>erff/rina Sclater, Proc. Zool. Soc. Lond., 1855, p. 110, pi. cri. — Sharpe, 
Cat. Birils Brit. Mvis., XIII, 1890, p. 547. 
Ofocoris alpeMrh chrysolmna Dwight, Auk, VII, April, 1890, p. 149-150 (part). 
Ofocori/a (iIpestriH var. peregrina Dunois, Synopsis Avium, Pt. 7, 1901, p. 452. 
Cham, suh.yy. — Similar to Otoeovix n. inxithin's, ])ut very much 
smaller. 
Meaxureiiierdsipne male). — Wing, 92; tail, (>;3; exposed culmen, 10.5; 
tarsus, 21.5; middle toe, 11.5 mm. 
Ty^e locality. — Bogota, Colombia. 
