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.
Humblot's flycatcher has a very limited range and is endangered due to deforestation and the introduction of species like the strawberry guava (Psidium cattleyanum), which could outcompete native species, the common myna (Acridotheres tristis) and rats that might plunder nests.