TROCHILID^. 



FAMILY III. 

 Trochilid.e. The Humming -birds. 



Gex. Chakac — BUI generally long, slender, straight, or curved, usually 

 rounded, and the tip acute ; the nostrils are basal, and covered by a large 

 scale, which is sometimes plumose j the wings are generally long and of 

 various forms ; the tarsi very short and generally slender ; the toes long and 

 slender, the lateral toes united at their base, hind toe moderate, and fur- 

 nished with a more or less lengthened claw. 



3/. — THE LOXG-TAILED HCMMIXG-BI KD. 



{Trochilus longicauda.) 



