MIGRATION 
ments, and on arriving at tire desired spot large numbers 
are slaughtered by the anxiously awaiting inhabitants, who 
receive them with a fiery warmth. Such is the unfortunate 
fate of many of our own species who migrate to strange 
lands, and instead of becoming settlers are cruelly settled 
by the rude natives, who, rightly or strongly, object to the 
intrusion of enterprising strangers. 
Migratory animals frequently are compelled by the 
nature of their food to shift their quarters as the food 
upon which they exist may be moving, such as fishes or 
insects, consequently birds or other animals are obliged 
to follow in the rear or wake of their lively-anticipated 
meal ; but in the case of animals that feed on vegetable 
substances, such as fruit, seeds, berries, etc., that are -only 
to be found at certain seasons, they must also shift from 
place to place and follow the season that produces their 
food, reminding one of the story of a man whose penchant 
for green peas caused him to visit Smyrna, he having 
heard that at that place they could be obtained in 
great perfection long before they made their appearance 
in more northern localities. Having enjoyed his feast 
until he found them getting rather harder and older than 
he liked them, he followed the growing crops northward 
until he reached the extreme limits of Scotland, where 
he ended the pea season about the time to take his 
departure again for Smyrna to again enjoy this delicious 
vegetable. 
This may be regarded as an apt illustration of one kind 
of migration, for had our species been born pea-eaters we 
should no doubt migrate accordingly. 
Many species of birds follow the successive growing 
crops of wild plants in order to feed upon the fruit or seed ; 
consequently their extension is dependent upon the dis- 
tribution of the plants, upon the fruit or seed of which they 
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