On Home-Earth, the modern Piciformes is made up of six clades: the widespread woodpeckers, piculets, and wrynecks (Picidae), the barbets (Capitonidae), the honeyguides of Africa and southern Asia (Indicatoridae), the toucans of Central and South America (Ramphastidae), and the tropical American jacamars (Galbulidae) and puffbirds (Bucconidae). Piciforms are zygodactylous, with two toes (II and III) on each foot pointing forward, the other two backward. This helps them to climb tree trunks and in sitting on thin twigs. Interestingly, no piciform species except the jacamars have down plumage at any age.