The Paradise Riflebird may be found in highland rainforests of the Great Dividing Range from central-eastern New South Wales north of Dungog to the Bunya Mountains, south-eastern Queensland.
The Paradise Riflebird foraging along branches and up tree trunks for insects, spiders and centipedes. The long curved bill is used to pry off large pieces of bark, to chisel into dead branches and to probe into crevices and rotten logs and stumps on the forest floor. Fruit is also eaten.
The nest of the Paradise Riflebird is not often found as it is placed high in dense foliage. It is a bulky rough bowl of twigs and leaves, decorated with moss, orchids and sometimes snakeskins. The female alone attends to the nest.
The males are promiscuous, mating with many females and they spend most of the day on their display perches, which consist of one or more thick, horizontal branches high above the ground in a tall tree.