Santa Marta Screech-Owl
Quick Facts
- Scientific Name: Megascops sanctaecatarinae
- Spanish Name: Autillo de Santa Marta
- Family: Strigidae
- Known Nicknames: Santa Marta Screech Owl
- Average Length: 22–25 cm / 8.7–9.8 in
- Average Weight: 110–160 g / 3.9–5.6 oz
- Wingspan: N/A
- Key Feature: Prominent ear tufts and a pale facial disc with a dark border
- Primary Diet: Primarily Insectivore
- Range: Sierra Nevada de Santa Marta and adjacent lowlands in northern Colombia
- Habitat: Humid montane forest and cloud forest
- Social Structure: Solitary or in pairs
- Nesting/Breeding: Tree cavities
- Conservation Status: Near Threatened (NT)
- Population Trend: Decreasing
The Santa Marta Screech-Owl (*Megascops sanctaecatarinae*) is a small, elusive nocturnal predator endemic to the cloud forests of Colombia’s Sierra Nevada de Santa Marta. Standing just 20–23 cm tall, it boasts a striking grayish-brown plumage intricately barred and streaked with black and white, providing perfect camouflage against lichen-covered tree bark. Its most unique characteristic is its haunting, descending trill call, often compared to the sound of a bouncing ping-pong ball, which distinguishes it from other screech-owls in its isolated range. Special features include bright yellow eyes framed by prominent ear tufts and a cryptic facial disc, while its relatively short, rounded wings allow agile flight through dense montane vegetation. This species is a master of stealth, preying on large insects and small vertebrates, and is considered vulnerable due to its restricted habitat.
Fun Facts
Despite its charming name, the Santa Marta Screech-Owl is a master of deception: it has two distinct color morphs—a grey phase and a rufous (reddish-brown) phase—that allow it to blend seamlessly into different tree bark backgrounds, confusing both prey and predators. It also possesses asymmetrical ear openings, with one ear higher on its skull than the other, giving it extraordinary hearing to pinpoint the rustle of a mouse or insect even under dense leaf litter. Quirkily, if threatened near its nest, this small owl will puff up its feathers to appear twice its size and perform a comical, side-to-side swaying dance to look more intimidating, rather than simply flying away.
Habitats & Distribution
The Santa Marta Screech-Owl inhabits humid montane forests and cloud forests, typically at elevations between 1,200 and 2,500 meters. It is often found in dense, moss-laden vegetation with a high canopy cover, frequently near streams or along forest edges. Its geographical range is restricted to the Sierra Nevada de Santa Marta mountain range in northern Colombia, where it is considered endemic to this isolated massif.
Behaviours & Reproduction
The Santa Marta Screech-Owl is a solitary and territorial species, with pairs forming only during the breeding season. Mating is presumed to be monogamous for the season, with courtship involving duet calling between the male and female to reinforce pair bonds and defend nesting territories. Reproduction typically occurs in the austral spring, with the female laying a clutch of two to three eggs in a natural tree cavity or abandoned woodpecker hole. The female alone incubates the eggs for about 26 to 28 days, while the male provides food. After hatching, both parents feed the chicks, which fledge at around four to five weeks old but remain dependent on the adults for several more weeks. No unique reproductive strategies beyond standard cavity nesting have been documented for this species.
Diet
The Santa Marta Screech-Owl is an insectivorous and carnivorous predator, with a diet composed primarily of large arthropods such as beetles, moths, grasshoppers, and spiders. Interestingly, it also regularly preys on small vertebrates, including frogs, lizards, and small rodents, which it captures by swooping down from a perch at night. A notable fact is that its hunting strategy relies heavily on its asymmetrical ear openings, which allow it to pinpoint the exact location of prey rustling in the leaf litter or undergrowth, even in complete darkness. Unlike some larger owls, it does not typically consume birds or bats, focusing instead on ground-dwelling and arboreal invertebrates and reptiles.
Colors
The Santa Marta Screech-Owl has a grayish-brown and rufous morph, both with heavy dark streaking and fine vermiculation on the underparts. Its facial disc is pale with a distinct dark rim, and it features prominent white eyebrows and small ear tufts. The cryptic plumage blends seamlessly with lichen-covered tree bark, providing excellent camouflage in its cloud forest habitat.
