CALLIOPE HUMMINGBIRD. 
436. Stellula calliope. 3 inches. 
This is the smallest of the family of North American Hum¬ 
mers. It is greenish on the upper parts, growing darker toward 
the tail, the end of which is a light brown The throat is a 
rich violet, showing white at the base of the featheis. They 
are found from British Columbia southward and from the 
Rockies westward, most common during breeding m California 
and Oregon. They build their nests in all manner ot locations, 
from high up in tall pines to within a foot of the ground in 
low bushes. They are made of plant down and shreds of bark 
and lichens, breeding high up on the mountains. 
LUCIFER HUMMINGBIRD. 
437. Calotliorax lucifer. 3% inches. 
Found only on the southern borders of the United States, but 
is quite common in Central Mexico. Throat is a metallic pur¬ 
ple, with feathers elongated on the sides. 
RIEFFER HUMMINGBIRD. 
438. Amizilis tzacatl. 4 inches. 
Found only on the southern borders like above. Upper parts 
a dark bluish green, tail and rump light brown. 
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