Plain-breasted piculet Plain-breasted piculet The plain-breasted piculet ("Picumnus castelnau") is a species of bird in the woodpecker family. It is found in the Ucayali and Amazon floodplains in eastern Peru. Its natural habitats are subtropical or tropical moist lowland forests and heavily degraded former forest. A small bird with a short tail, the plain-breasted piculet typically grows to a length of . It is mostly grey on the face and its nape and upper neck are finely barred in an olive green color. Its mantle and back are an olive, brown or grey color with slight pale barring and a light yellowish-brown,
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