Flammulated Owl

The Flammulated Owl is a small, elusive owl of open montane pine and pine-oak forests in the mountains of the western United States, Mexico, and parts of Central America. Unlike most North American owls of similar size, it is a long-distance migrant, wintering as far south as Mexico and Central America and returning to breed in high-elevation forests each spring.

It is almost entirely nocturnal and insectivorous, feeding heavily on moths and other night-flying insects gleaned from foliage and bark. Its plumage is exceptionally cryptic, blending closely with the mottled gray and rufous bark of ponderosa and other pines, making both the bird and its feathers easy to overlook.

A distinctive feature for an owl this small is its dark brown eyes rather than yellow, a trait shared with only a few other owl species and useful in distinguishing it from similarly sized species when a whole bird is seen.

Size and shape

Small feathers from a bird about 17 cm long, with soft, downy-edged flight feather margins that provide silent flight, an owl hallmark. Small, poorly developed ear-tuft feathers may be present near the crown.

Color and pattern

• Plumage is a fine mottled mix of gray, rufous, and blackish markings that closely resembles pine bark, providing strong camouflage.
• Underparts show pale gray-buff ground color with dark vertical streaking and cross-barring, creating a complex, broken pattern.
• Facial disc feathers are grayish with a rufous tone around the eyes.
• Shafts are pale.

Distinguishing from similar species

Compared to Western Screech-Owl feathers, Flammulated Owl feathers are smaller, show a finer and more intricate bark-like mottling rather than coarse streaking, and lack the strong contrast of screech-owl plumage. The overall impression is of a more finely marbled, camouflage pattern rather than bold streaks.

Adults show a complex cryptic pattern of gray, rufous, and blackish mottling above, closely matching pine bark, with paler underparts marked by dark streaks and bars. Small ear tufts are present but often inconspicuous. Sexes look alike. Juveniles are similarly patterned but softer and less crisply marked. As a long-distance migrant, this species undergoes a complete molt on or near the breeding grounds after nesting, timed to be finished before fall migration.

This species breeds in open, mature pine and pine-oak forest at mid to high elevations in the mountains of the western United States, Mexico, and locally into Central America. It is a complete migrant, vacating its breeding range in winter to occupy pine-oak and other forest habitats farther south in Mexico and Central America.

Flammulated Owls feed almost exclusively on nocturnal insects, especially moths, caught by sallying from a perch or gleaning from foliage and bark. They nest in old woodpecker cavities, particularly those of flickers, and are highly vocal at night with a low, soft, repeated hoot that carries surprisingly far for such a small bird. Because they are so cryptically colored and strictly nocturnal, they are rarely seen and their feathers are an uncommon but distinctive find in pine forest leaf litter. When identifying a feather, look for the fine bark-like mottled gray-rufous-black pattern and small overall size.