Black-dotted piculet Foraging birds may repeat the song a few times and then fall silent for several minutes. Birds of this species forage in pairs, often widely separated, or alone. They occasionally join mixed-species flocks. They often "hitch sideways along branches," and they peck or drill like woodpeckers in rotting wood and at broken ends of branches. The taxonomy of "Picumnus" is controversial, and this taxon has been considered conspecific with the white-bellied piculet, conspecific with the golden-spangled piculet, and a synonym (incorrect name) of a subspecies of the scaled piculet ("P. squamulatus obsoletus"). Here it is considered a separate species following
Ochre-collared piculet found at altitudes of up to . Its habitat is mostly lowland rainforest with bamboos, vines and tangled growth, but it is also found in secondary growth, thickets, tall scrub, parks and gardens. It hybridizes with the white-barred piculet where their ranges overlap. The ochre-collared piculet forages through the undergrowth, including scrambling among vines, slender branches and saplings. Its diet is ants, beetle larvae and other small invertebrates. Its breeding habits have been little studied but it nests in a hole in a tree; one nest in São Paulo State in Brazil was above the ground and a male was