Antillean piculet throat and belly is off-white with streaks and spots. The female is similar to the male, except larger and lacking the red spot on the forecrown. The plumage of juvenile birds is similar to the adults but duller. Unlike the true woodpeckers (Picinae), they do not drum on trees to advertise their ownership of a territory, instead calling in a loud and rapid whistle. This call, rendered as "kuk-kikikikekukuk", is also used as a contact call between pairs. The Antillean piculet feeds on insects, with ants and beetles forming a large part of the diet. They also consume a lot
White-wedged piculet are brown above, with pale edgings to the secondaries and tertiaries, and the tail is brown, the two central feathers being white, and there being a white patch on the outer edge near the tip. The throat, breast and belly are white with black scaling, the flanks and lower belly being less scaled than elsewhere. The iris is brown, the beak blackish and the legs grey. The juvenile is similar to the female but has a paler crown. The native range of the white-wedged piculet in tropical South America includes parts of Bolivia, southern Brazil and northern Paraguay; it is