146 
NATURAL BUTORY 
SWALLOW. 
The Swallow is well known throughout 
almost the whole of the habitable globe. Of 
a slight frame of body, but furnished with 
long and powerful wings, they are able to 
sustain themselves in flight for hours toge- 
ther. This, is the more necessary, as all 
their food is caught whilst they arc on the 
wing; and also, as about the beginning of 
October, they migrate from this country, for 
the purpose of passing the winter in some 
warmer climate. They return in the early 
part of the year, and arc the harbingers of 
spring. The Swallow is immediately dis-i 
tinguishcd from all the other species, even 
in its flight, by its long and forked tail, and 
its body being dark coloured above and 
whitish beneath. 
