It is a medium to large-sized owl, easily identified by its heart-shaped facial disc, pale and well defined, contrasting with the darker tones of the body. The upperparts show a mix of buff, golden, and grayish hues, finely mottled, while the underparts are lighter, whitish to creamy, with sparse dark spotting. The wings are long and broad, allowing for silent and highly efficient flight, a hallmark of the genus. Eyes are dark, and the bill is short and hooked. There is no strong sexual dimorphism in plumage, although females tend to be slightly larger than males.
Geographic distribution: This species occupies a broad range across the Americas, from the southern United States, Mexico, and Central America, through much of South America, including Argentina, Uruguay, Paraguay, Bolivia, Brazil, and Chile. Its distribution is extensive and mostly continuous, with largely resident populations, although local movements may occur in response to prey availability.
Habitat: It inhabits a wide variety of open and semi-open environments, including grasslands, agricultural areas, savannas, and rural landscapes, as well as urban and suburban settings. It frequently uses human-made structures such as barns, churches, silos, warehouses, and abandoned buildings for roosting and nesting. Dense forests and extreme mountainous regions are generally avoided.
Diet: The diet consists mainly of small mammals, particularly rodents, making it an important natural controller of pest species. Occasionally, it preys on small birds, reptiles, amphibians, and large insects. Hunting takes place mostly at night, relying on an exceptionally developed sense of hearing that allows detection of prey movements in complete darkness.
Behavior: This owl is primarily nocturnal and crepuscular, usually solitary or found in long-term pairs. During daylight hours, it remains concealed in dark, quiet roosts. Its flight is buoyant and silent, enabling stealthy hunting. Although generally inconspicuous, it can produce harsh screeches and hissing sounds, especially during breeding or territorial defense.
Nesting: It does not build a conventional nest, instead laying eggs in natural or artificial cavities, directly on the substrate. Clutches typically range from 3 to 7 eggs. The female performs most of the incubation while the male provides food. Chicks develop asynchronously and remain dependent on parental care for several weeks.
Conservation status: Globally classified as Least Concern (LC) due to its wide range and adaptability. However, local populations may be affected by habitat loss, persecution, road mortality, and secondary poisoning from rodenticides.
Author of this compilation: EcoRegistros – 22/12/2025