The Mottled Whistler lives in New Guinea's montane forests. Plumage spotting varies between sexes and subspecies, and it eats fruit and insects.
It has pale spotting, and the body color and pattern of spots vary by sex and subspecies.
It forages in the lower and middle forest layers for fruit and insects. A cup-shaped nest has been recorded above the ground on a branch.
An extinction-risk assessment has not been added yet.