Being entirely gray the Shoebill is easily recognized, even without its most distinguishable feature which gives it its name – a bill that resembles a hook-tipped Dutch clog . The head is large in proportion to the body, and the many-colored bill is wide and thick, The hooked bill is 8 – 12 inches (20 – 25 cm) long, 4 – 5 inches (10 – 13 cm) wide and has cutting edges. It has yellow eyes and extremely long toes. Males and females have similar coloration with small crest or white tufts sticking out from the back of the head. The tail is rounded. The tan beak often has dark spots. The legs are skinny and long, like the legs of most wading birds; feet are unwebbed.
Some of the few captive specimens have been mistaken for the much larger Harpy eagle. This remarkable resemblance extends to juvenile plumage — newly fledged birds of both species have white heads. Crested eagles usually eat smaller monkeys than Harpies, and more often hunt reptiles.
The head of the male is black except for the bluish-green bare skin around the eyes and the yellow ear-tufts. The upperparts and tail are olive-green. The bill is ivory with black vertical stripes, large spots and a yellowish tip. Females are similar but the head is chestnut and the underparts are a rufous color.
This toucanet is easily identified by its saffron yellow head and breast, olive mantle and red rump. Sexes are similar but the female is duller (somewhat more olive in color) and the bill is shorter. The greenish-horn bill has red patches surrounded by yellowish-gray at the base. The rump and ocular skin are red. The iris is pale yellowish.
Male Guianan cocks-of-the-rock are bright orange birds with large, orange, half-moon crests on their heads. This edge of the crest is lined with a brown band. The crest remains erect and covers the bill. They have black and white wing bars and black on their tails. The bill, legs, and skin are orange as well. Females are a drab brown color. Their bill is black with a yellow tip and they have a smaller crest than the males.
Crimson-rumped toucanets are mostly green in color and, as the name implies, have a red rump. They are somewhat darker and have a bronze tint above. The blue-green tail has some reddish-brown tips. The patch at the base of the mandible, area around the eyes and broad band across the breast are blue. The long, curved beak is reddish-brown and black, with a vertical white stripe at the base. Eye skin is brown and the iris is dark.
As the name implies, Chestnut-eared aracaris have a chestnut coloring around the throat and ears. The head is black and the back and tail dark green to almost black. Their undersides are yellow with a red band and rump. Their dark brown hooked beaks have a yellow-orange stripe along the bottom of the upper mandible. The serrated edge of the upper mandible is prominent. The whitish eyes are surrounded by grayish-blue facial skin. The feet and legs are yellowish-green. Sexes are somewhat similar but the female has more brown on the head, shorter bill and the black area on lower throat is not as wide.
The Black and white hawk-eagle as the name suggests, is a black and white eagle with a small crest that forms a “skullcap-like” black spot on its head. Its head, neck and body are white, the wings are brownish-black and the grayish-brown tail is barred. The cere is orange and the eyes are yellow. The beak has a black tip. The feet are bright yellow with black talons. The sexes are similar, but females are larger.
The Horned guan is an impressive, unmistakable bird that is named for the unusual red “horn” of bare skin at the tip of its head. Adults sport a horn that averages between 1.6 – 2.4 inches (4 – 6 cm) in height. This large cracid is glossy black above, with a blue-green sheen. The foreneck, breast and upper belly are mostly white, with black flecks. The lower belly and flanks are brown. A striking, white band is near the base of the tail. Horned guans also have a small red dewlap (loose skin hanging under the neck). The legs are red, iris is white and the bill is yellow. Sexes are alike, however it has been reported that the lengths of tarsus, wing, tail and horn are somewhat longer in males. Vocalizations and behavior can be used more accurately for the identification of males and females.