PERCHING BIRDS 
578. Cassin’s Sparrows Peuccea cassini. 
Range. — Plains and valleys from Texas and Arizona 
north to Kansas and Nevada. 
These birds breed in numbers on the 
arid plains, placing their grass nests on 
/ the ground at the foot of small bushes 
or concealed in tufts of grass, and during 
May lay four pure white eggs which are 
of the same size and indistinguishable 
from those of others of the genus. 
White 
579 ■ Rufous-winged Sparrow. Aimophila carpalis. 
Range. — Plains of western Mexico and north to southern 
Arizona. 
This pale colored bird bears a remote 
resemblance to the Tree Sparrow. They 
nest commonly in dry arid regions, plac- 
ing their nests at low elevations in 
bushes or cacti, preferably young mes- 
quites, and making them of coarse grass 
lined with finer. Two broods are raised 
a season and from May to August sets 
of four or five plain bluish white eggs may be found. 
Bluish w h i t e 
Size .75 x .60. 
580. Rufous-crowned Sparrow. Aimophila ruficeps ruficeps. 
Range. — Local in southern half of California and in Lower California. 
A brownish colored species both above and below, which is found on mount- 
ains and hillsides in restricted localities. They nest on the ground placing their 
grass structures in hollows, usually at the foot of a small bush or shrub and 
well concealed. They lay from three to five pale bluish white eggs. Size 
.SOx .60. 
580a. Scott’s Sparrow. Aimophila ruficeps scotti. 
Range. — Western Texas, New Mexico and Arizona south in Mexico. 
A paler species, above, than the last, and whitish below. It is quite a com- 
mon species on the mountain ranges where it nests on the ground, in clumps of 
grass or beneath shrubs or overhanging rocks; the nests are made of grasses 
and weeds scantily put together. The eggs are white, untinted. Size .80 x .60. 
580b. Rock Sparrow. Aimophila ruficeps eremceca. 
Range.- — Middle and southern Texas and south in Mexico. 
This variety frequents rocky mountain sides where it nests 
abundantly under rocks or at the foot of shrubs, the nests 
being made of coarse grasses loosely twisted together and 
lined with finer grass. The birds are shy and skulk off 
through the underbrush upon the approach of anyone so that 
the nests are quite difficult to find. The three to five eggs are 
pure 'white and of the same size as those of the last. 
580c. Laguna Sparrow. Aimophila ruficeps sororia. 
Range. — Mountains of southern Lower California. 
The nests and eggs of this very similar variety to ruficeps 
likely to differ in any particular from those of that species. 
353 
White 
proper are not 
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