[2] It is found in Brazil, French Guiana, Guyana, Suriname, and Venezuela.

Adult females have a black cap and chestnut nape and upper back with only a hint of yellow collar.

Immatures are similar to adults but duller overall and with their plumage and bill patterns less distinct.

[9] The Guianan toucanet is found from extreme southeastern Venezuela east through the Guianas into northern Brazil and south to the Amazon River between the Rio Negro and the Amazon's mouth in the state of Amapá.

It usually forages in pairs or small groups, and usually from the forest's mid level to the sub-canopy.

[9] The Guianan toucanet breeds between March and May in Venezuela and the Guianas and from April to July in Brazil.

Its basic call is a "rattle, 'trrrr-trrrr-trrrr...', joined with rising squawk, rooster-like at times, 'kaaaaaaiiiiii'".

It also makes "various soft rattles and other calls, some aggressive, others used in courtship feeding and at [the] nest.