468 FAMILY PSITTACID^J PARROTS, COCKATOOS, MACCAWS. 



and is subdivided, chiefly according to the form of the bill and 



Fro. 263. BILL OF COCKATOO. 



tail, into several groups, most of which are well known in this 



country, by the domesticated 

 specimens which have been 

 introduced into it. The true 

 Parrots have the upper man- 

 dible toothed, and longer than 

 it is high ; and the tail is 

 short, and even or rounded at 

 the end. They are found in 

 abundance in the tropical 

 forests of both the Old and 

 New World. In the Cockatoos, 

 the bill is higher and curved 

 from the base ; the head large 

 and generally crested ; the 

 tail lengthened, broad, and 

 rounded. The Maccaws have 

 a long tail, pointed at the end ; 

 the upper mandible is very 

 much hooked, so that the tip 

 descends far over the extre- 

 mity of the lower one ; and the 

 lower one is deeper than it is 



long. They live in flocks in the forests of the New World ; and 



FIG, 264. MACCAW. 



