AN ORNITHOLOGICAL LECTURE. 89 
and England, which is still farther. Our little bluebird 
pays an annual visit to the Bermudas, six hundred miles 
from the continent, and Wilson estimated its apparently 
SUMMER YELLOW-BIRDS. 
very moderate flight at much more than a mile a minute. 
Remarkable stories are told of the long flights tame falcons 
have been known to take—one going a thousand three hun- 
dred miles in a day. Yarrell mentions earrier-pigeons that 
