US 
THE NATURAL HISTORY 
in them, at lead independent of cold, or want of 
nouriflrment, fince in a cage, the temperature 
mud be always nearly the fame, and their food 
generally in equal abundance. 
The Nightingale is not originally an American 
bird ; there are fome in the northern parts, thefe 
may have migrated from the north eadern parts of 
Afia, where a very narrow' fea divides the Con¬ 
tinents. The fong of the Nightingale in Canada, 
is faid to be much inferior to the fong of the 
Nightingale in Afia, or Europe, and their fong 
in Scotland, to their fong in Italy; indeed a 
fcarcity of food, and a cold climate, materially 
a deed the finging of birds. 
As the male Nightingale pades much of the 
night in finging, it has been fuppofed that they 
never deep in the dimmer feafon ; and with equal 
folly, that the heart and the eyes of a nightingale 
placed under a pillow, would prevent the perfon 
from deeping who lay upon it: it is right to men¬ 
tion thefe follies, in order to expofe and contra- 
dud them. Attentive qbfervers find that in the 
fummer feafon. Nightingales deep occafionally in 
the dav, and in confinement they have been ob- 
ferved to dream, and to warble in their deep in 
a low voice. 
When 
