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RED AND BLUE MACCAW. 
Macrocercus aracanga. • 
PLATE VII. 
Sittace aracanga, Wagler, in Abhand. fyc. p. 672 Psit- 
tacus aracanga, Auct. — L’Ara canga, Ve Vaill. Hist, des 
Per. t. 2. — The Red and Blue Maccaw, Edwards, 4. 
t. 158. 
This large and splendid species has frequently 
been confounded with its nearly related congener, 
the Psittacus macao of authors, from which it may 
always be distinguished, by the want of the narrow 
rows of red plumes upon the naked part of the face, 
and in having the middle wing-coverts of a bright 
yellow, instead of green. In dimensions it is fully 
equal to the other species, frequently attaining 39 
inches in extreme length, of which the tail measures 
nearly 24. The bill is large, and very powerful : 
the upper mandible yellowish-white, except near the 
angles of the mouth, where it is varied by a dark 
streak or spot ; the under mandible is black. The 
cheeks and orbits are covered with a rough pinkish • 
white skin, without any rows of small feathers ; the 
rest of the head, the neck, back, scapulars, breast, 
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