There are two color morphs of this species. The ventral side of both morphs generally tend to be blotched with gray, black, and reddish-brown. The dorsal side of the gray morph is mainly gray with reddish-brown on the back of the neck, and on the retrices and remiges. The dorsal side of the red morph is reddish-brown. A key field mark of this species is the streak of reddish feathers along the shoulder and onto the back.
Flammulated owls have a raptorial toe configuration.
There is no sexual dimorphism between the sexes. Food Habits Otus flammeolus are insectivores. They feed on insects, moths, beetles, and crickets. Flammulated owls are predators that sit on a perch and pounce on their prey. Reproduction Flammulated owls are cavity nesters.