It inhabits chimneys or hollow trees, in which it builds nests of twigs glued together 
with its own saliva. 
Its note is a swallow-like twitter, and it is equally voluble whether upon the wing or 
in its nest. 
Seemingly rejoicing in its marvelous power of flight, it is never seen to alight except 
in chimneys, but it feeds its young, captures its Insect prey, and even breaks twigs from 
trees for nest construction while flying. 
RUBY-THROATED HUMMINGBIRD. 
Trochilus colubris. 
Above bright metallic green; beneath light gray; sides of body 
greenish ; throat ruby-red ; wings and tail dusky violet, the latter deeply 
forked ; bill straight, long and dilated at the tip. Length, 3.75 inches. 
Migratory. Arrives early in May, leaves in September. Its nest, which is a tiny 
affair, is usually placed on the upper side of a limb; it is made of lichens and is lined 
with vegetable down. 
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