BIRDS FRIN GILLIDAE — ZONOTRICHIA LEUCOPHRYS. 
459 
Sr. Cii. — Head above, upper half of Ioral region from the bill, and a narrow line through and behind the eye to the occiput, 
black ; a longitudinal patch in the middle of the crown, and a short line from above the anterior corner of the eye, the two confluent 
on the occiput, white. Sides of the head, fore part of breast, and lower neck all round, pale ash, lightest beneath and shading 
insensibly into the whitish of the belly and chin ; sides of belly and under tail coverts tinged with yellowish brown. Interscapular 
region streaked broadly with dark chestnut brownish. Edges of the tertiaries brownish chestnut. Two white bands on the 
wing. 
Female similar, but smaller ; immature male with the black of the head replaced by dark chestnut brown, the white tinged 
with brownish yellow. 
Length, 7.10 inches; wing, 3.25. 
Hub. — United States from Atlantic to the Rocky mountains, where they become mixed up with Z. gambclii. Greenland, 
Reinhardt. 
The white of the crown separates two black lines on either sides, rather narrower than itself. 
The black line behind the eye is continued anterior to it into the black at the base of the bill. 
The lower eyelid is white. There are some obscure cloudings of darker on the neck above. The 
rump is immaculate. No white on the tail, except very obscure tips. The white crosses the 
ends of the middle and greater coverts. 
Eastern specimens of this species vary considerably in size, while the smallest are from 
southern Texas and California. Even here, however, specimens are occasionally as large as 
those from Pennsylvania. Oregon skins are generally as large as those from the last mentioned 
State. 
The only difference I can detect between eastern and western skins is, that in the former there 
is a short black line from the upper side of the anterior canthus of the eye to the black stripe on 
each side of the crown, the white superciliary stripe being cut off by this from the whitish gray 
of the lores, while in all from the Pacific coast the superciliary white is continuous with the 
grayish lores. Whether this is constant throughout I cannot say. The specimens from Texas 
and east of the Kocky Mountains are like those from Pennsylvania. Of two specimens from the 
Mimbres, one (6199) has this line ; the other (G198) is without it. A specimen from San 
Elziario, Texas, is also without it. Some California specimens appear to have the tarsus yellower, 
and a little longer. 
The specific name of gambelii has been assigned to the western white-crowned sparrow, on the 
strength of its inferior size, and will answer very well for it, if really distinct. 
Note. — Since writing the preceding paragraph, the examination of many additional specimens 
has substantiated the indications of differences between eastern and western birds. Of fifty 
specimens from the west, all have the superciliary stripe continuous from the bill, while all the 
eastern have it interrupted. Immature specimens, however, can only be distinguished by the 
more hoary lores. 
