80 BIRDS OF PASSAGE. 



LESSON X. 



MIGRATION OF ANIMALS BIRDS OF PASSAGE. 



THERE is another very curious proof of the 

 instinct of animals, and of the care taken for 

 their preservation ; and this is their migrations. 

 This signifies that, at certain times, they remove 

 from one situation to another often to very 

 great distances ; crossing wide seas, and passing 

 over entire countries : one kind of bat being 

 known to live here during the summer, and to 

 remove to the south during the winter. 



There are but few quadrupeds which migrate 

 very far. These rather remove from one part 

 of the same country to another, according to the 

 seasons. Some kinds of deer, however, in north- 

 ern regions, change their residence^in summer and 

 winter, and travel considerable distances. 



Many birds migrate, and are hence called 

 birds of passage. We are told in the Bible, that 

 ''the stork in heaven knoweth her appointed 

 times ; and the turtle, and the crane, and the 



