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Birds. 
breast of the female is nearly white. These birds do not 
frequent the banks of rivers, but are generally found 
walking among the grass of meadows, and following 
sheep. They are summer visitors to England. 
White says, that "while the cows are feeding in the 
moist, low pastures, broods of Wagtails, white and grey, 
run round them, close up to their noses, and under their 
very bellies, availing themselves of the flies that settle on 
their legs, and probably finding worms and larvae that are 
roused by the trampling of their feet. Nature is such 
an economist that the most incongruous animals can avail 
themselves of each other." 
" Interest makes strange friendships ! " 
THE SWALLOW. (Eirundo rustica.) 
'* From the low-roof d cottage ridge 
See the chattering Swallow spring ; 
Darting through the one-arch'd bridge, 
Quick she dips her dappled wing." 
Cunningham. 
Swallows are easily distinguished from all other birds, 
not only by their general structure, but by their twitter- 
