[4] They are smallish to mid-sized forest birds of the Neotropics, with long pointed bills, elongated tails, and small feet.

Colored in metallic iridescent hues – typically greenish – at least on the upperside, some have a red or brownish belly.

Males and females are generally similar in appearance, but in most species differ in minor plumage details.

In the case of this genus, nests are dug in earthen banks along rivers or roads, or in termitaria.

Only the coppery-chested jacamar (G. pastazae) occurs in a more restricted region in the Andes foothills, and is considered a threatened species.