Growing to about nine inches in length, Black-headed Caiques have predominantly green plumage. They are extremely colorful little birds with black crowns, napes, and foreheads. Their bill is also blackish, and the periopthalmic ring is dark gray like the feet. The iris is red. Black-headed Caiques have orange cheeks, throats, thighs and flanks. Their undersides are a creamy white color, and the undersides of their tails are yellow-orange and olive yellow. Black-headed Caiques' primaries and primary coverts are a deep violet or purple-blue color, and the upper sides of their tails have feathers tipped in yellow.
Growing to about nine inches in length, Black-headed Caiques have predominantly green plumage. They are extremely colorful little birds with black crowns, napes, and foreheads. Their bill is also blackish, and the periopthalmic ring is dark gray like the feet. The iris is red. Black-headed Caiques have orange cheeks, throats, thighs and flanks. Their undersides are a creamy white color, and the undersides of their tails are yellow-orange and olive yellow. Black-headed Caiques' primaries and primary coverts are a deep violet or purple-blue color, and the upper sides of their tails have feathers tipped in yellow.