OTOCORYS. 119 
Otocorys praticola, //ensh. 
Otocoris alpestris pratincola, Oberholser, P. U.S. Nat. Mus. xxiv. 
p- 825 (1902). 
Otocorys praticola, Sharpe, Hand-l. vy. p. 160 (1906). 
Four eggs of the Prairie Horned Lark are of a pointed oval form 
and are slightly glossy. They vary both in size and in markings: 
the two from Winnebago are smaller and have the ground-colour 
greenish-white thickly mottled all over with yellowish-brown and 
grey; while, of the two from Mount Carroll, one has the ground- 
colour greenish-white marked with olive-brown and grey, the 
markings being mostly concentrated in a heavy confluent ring 
round the larger end, and in the second the ground-colour is 
whitish, densely and finely marked all over with light brown and 
lilac, forming an indistinct zone round the larger end. Three 
eggs measure respectively : *88 by °58; ‘93 by °63; °95 by °67. 
2. Winnebago, Illinois, 5th June Salvin-Godman Coll. 
(J. W. Tolman: Henshaw Coll.). 
Mount Carmell, [Mlinois (Smiths. Crowley Bequest. 
Inst.: Tristram Coll.). 
to 
Otocorys giraudi, Hensh. 
Otocoris alpestris giraudi, Oberholser, P. U.S. Nat. Mus. xxiv. 
p- 831 (1902). 
Otocorys giraudi, Sharpe, Hand-l. v. p. 160 (1906). 
Four eggs of the Texan Horned Lark are very similar to those 
of O. leucolema, but are rather smaller and of a more blunt oval 
form. In one example many of the markings take the form of 
blotches, and two examples have black specks or hair-lines across 
the larger end. They measure respectively: *77 by °58; °78 by 
“O13, :S.L by 58; °82 by +58. 
4. Texas, 30th April. W. Radcliffe Saunders, Esq. 
EP. 
Otocorys insularis, Towns. 
Otocoris alpestris insularis, Townsend, P. U.S. Nat. Mus. xiii. p. 140 
(1890); Bendire, Life-Hist. N. Amer. Birds, ii. p. 347 (1895); 
Oberholser, P. U.S. Nat. Mus. xxiv. p. 839 (1902). 
Otocorys insularis, Sharpe, Hand-l. v. p. 160 (1906). 
The eggs of Townsend’s Horned Lark resemble those of 0. peni- 
cillata and present the same greenish aspect. They measure from 
‘78 to °85 in length, and from ‘6 to ‘62 in breadth. 
1. Sta. Cruz Island, California, 6th May Salvin-Godman Coll, 
(Henshaw Coll.). 
4, San Miguel Island, California, 20th Salvin-Godman Coll. 
May (2. H. Beck). 
