 Little is known about its breeding habits; the only known nest was a cup built high in a tree which contained at least two young.Humblot's flycatcher has a very restricted range and is threatened because of destruction and degradation of the forest and the spread of introduced species such as the strawberry guava ("Psidium cattleyanum"), which could overwhelm native species, the common myna ("Acridotheres tristis") and rats which may raid the nests.The population of 10,000-19,000 individuals is decreasing and the species is classed by the International Union for Conservation of Nature as endangered.