510 ALAUDIDZ. 
[ Note.—Dr. Dugés, in his list of Guanajuato birds published in the first volume of 
‘La Naturaleza,’ includes two other species of Corvide as found in the neighbourhood 
of the town in which he resides; but we have not put them formally into our list, as 
their occurrence so far south in Mexico is perhaps only casual, and no other writer 
makes any mention of them. These species are :— 
1. Corvus americanus, Aud., Dugés, La Nat. i. p. 139; Baird, Brew., and Ridgw., 
N. Am. B. ii. p. 243. 
A species of wide range in North America from the fur countries southward, and 
also found in the frontier State of Texas. Dr. Dugés gives it from Guadalajara and 
Guanajuato; possibly the bird referred to is C. meaxicanus. 
2. Pica HUDSoNICA, Bp., Dugés, La Nat. i. p. 139. 
Pica caudata, var. hudsonica, Baird, Brew., and Ridgw. N. Am. B. i. p. 266. 
This species, which is now considered by many writers to be inseparable from the 
European Pica rustica, is found throughout the northern and western parts of North 
America and in the Rocky Mountains to New Mexico and Arizona. Dr. Dugés records 
its occurrence from Guanajuato. | 
Fam. ALAUDIDZ. 
OTOCORYS. 
Otocoris, Bonaparte, Icon. Faun. Ital. Ucc. Intr. fol. **** (1839). 
Otocorys, Dresser, B. Eur. iv. p. 385. 
Eremophila, Boie, Isis, 1828, p. 322; Baird, Brew., & Ridgw. N. Am. B. ii. p. 189. 
Otocorys is the only genus of the Alaudide found permanently in America, where it 
occurs over the greater part of the northern continent from the shores of the Arctic 
Ocean to the plateau of Mexico, and in South America there is an outlying colony in 
the Andes of Colombia. The genus has also a wide range in the Old World, where it 
is represented by several closely allied forms, the limits of some of which are not clearly 
defined. The same is the case in America, where several races have been distinguished, 
our Mexican bird being one of them. 
The bill of O. chrysolema has no trace of a notch at the end of the maxilla, the 
tomia is very slightly curved; the nostrils are completely covered by stiff feathers, with 
which are mingled some strong decurved bristles. The toes are rather short, and the 
claw of the hind toe strong and nearly straight. The wings are long and pointed, the 
three outer primaries forming the point, the second being slightly the longest; the 
inner secondaries slightly exceed the inner primaries. The tail is moderate, and nearly 
even at the extremity. 
