Stygian Owl

The Stygian Owl ranges widely but patchily from Mexico and the Caribbean south through Central America into much of South America, favoring forest edge, pine woodland, and montane forest habitats. It is one of the darkest of the eared owls, with a dramatic near-black plumage that gives it its name.

It is a scarce and locally distributed species across much of its range, more often detected by its deep hooting call than seen in flight or at roost.

Its feathers stand out for their unusually dark, blackish-brown ground color combined with long ear tufts held close together, distinguishing it from paler eared owls sharing parts of its range.

Shape and Size

Flight feathers are fairly large for an Asio owl, roughly 20-24 cm on primaries, with soft fringed edges. Ear-tuft feathers are long and set close together near the center of the crown.

Color and Pattern

• Blackish-brown ground color, notably darker than most other eared owls
• Fine pale buff mottling and streaking break up the dark background
• Underparts slightly paler but still heavily marked with dark streaking

Shaft and Vane

Shafts dark brown to blackish; vanes dense and moderately soft.

Distinguishing from Similar Species

The unusually dark, blackish ground color separates Stygian Owl feathers from the paler Striped Owl and Long-eared Owl relatives sharing parts of its range, where present.

Adults are blackish-brown overall with fine pale buff mottling and streaking, a dark facial disc, long ear tufts set close together, and yellow eyes.

Sexes look similar, with females slightly larger. Juveniles are paler and downier, developing the dark adult plumage with age. Adults undergo a single annual molt.

This species has a broad but patchy distribution from Mexico and parts of the Caribbean south through Central America into South America, including Andean forest edge, pine-oak woodland, and montane forest.

Most populations are resident, though some local or altitudinal movements may occur seasonally in certain regions.

The Stygian Owl is nocturnal, roosting by day in dense forest foliage. It feeds primarily on small birds and mammals, often hunting at forest edges and clearings.

It nests in old stick nests of other birds within trees. Its call is a deep, resonant hoot. A blackish-brown, finely mottled feather with long, closely-set ear-tuft plumes found in Latin American forest edge or pine woodland habitat is consistent with this species.