CASSIN VIREO. 
629a. Lanivireo solitarius cassini. 5 inches. 
To be found west of the Rockies from British Columbia 
south to Lower California and Mexico. In southern California, 
it is found breeding much more commonly than the Western 
Warbling Yireo, placing its nest high in the oaks and con¬ 
iferous trees. It belongs to the same musical family, keeping 
up its song from morning until night. The nest is made 
of similar material to the previous, and the eggs are the 
same, except in size (.75 x.58). 
BLACK-CAPPED VIREO. 
630. Yireo atricapillus. 4^2 inches. 
A smaller variety, the male marked with a black cap. 
Breeds in Texas, north to Kansas. Winters in Mexico (not 
illustrated). 
HUTTON VIREO. 
632. Yireo huttoni. 4% inches. 
Similar to last, without the black cap. Found in central 
and southern California. Nesting habits similar to others of 
the family. Eggs white with a few spots of brown about 
the larger end (.70 x.50). 
205 
