MIGRATION AND FLIGHT. 
103 
has followed the apple to England. Glenco, in the 
Highlands of Scotland, never saw the Partridge till 
its farmers, of late years, introduced corn into their 
lands. Nor did Sparrows appear in Siberia, until 
the Russians had made the vast wastes of those 
parts of their dominions arable. The Rice Bunt- 
ings, natives of Cuba, after the planting of rice in the 
Carolinas, annually quit the island in myriads, and, 
flying over wide seas, land, to partake of a harvest 
introduced there from distant India. It is, however, 
only the female Rice-bird that migrates ; for of the 
numbers visiting Carolina, it is said not a single 
male is ever found. 
The foregoing instances, while they assure us (if 
assurance was necessary) that birds, at wonted times, 
change their habitations, still add to, rather than 
remove, the difficulties as to the real causes. But 
if of these we must for the present remain in 
ignorance, we have enough left in the actual facts 
of migration, to call forth all our wonder, in con- 
sidering the regularity, order, and discipline, with 
which these unaccountable journeys are conducted, 
and the unknown compass placed within the bosoms 
of these airy travellers, enabling them to go to, and 
return from, points thousands of miles apart, with 
as much certainty, as the sailor steers his ship across 
the wide ocean by his skill in navigation, and that 
mysterious needle ever pointing to the north. 
Neither is this instinct confined to birds; it has 
been observed in Turtles, which cross the ocean 
from the Bay of Honduras to the Cayman Isles, 
near Jamaica, a distance of 450 miles, without the 
aid of chart or compass, and with an accuracy supe- 
