RUBY-THROATED HUMMING-BIRD. 
( Trochilus colubris , L. Wilson*, ii. p. 26. pi. 10. fig. 3. and 4. Audu- 
bon, pi. 47, [a numerous group of old and young.] Orn. Biog. i. 
p. 248. Phil. Museum, No. 2520.) 
Sp. ChaRact. — Golden-green ; tail forked, dusky ; 3 outer tail- 
feathers rusty-white at tip. — Male with a changeable ruby-colored 
throat. — In the female and young , the throat is nearly white, 
strongly inclining to yellow in the young male. 
This wonderfully diminutive and brilliant bird is the 
only one of an American genus, of more than 100 species, 
which ventures beyond the limit of tropical climates. Its 
approaches towards the north are regulated by the advanc- 
es of the season. Fed on the honeyed sweets of flowers, 
it is an exclusive attendant on the varied bounties of 
Flora. By the 10th to the 20th of March, it is already 
seen in the mild forests of Louisiana, and the warmer mar- 
itime districts of Georgia, where the embowering and fra- 
