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Tawny-browed owl

The Tawny-browed owl is a species of owl native to the humid tropical forests of Argentina, Brazil, and Paraguay. This owl is distinctive for its creamy "brows" above chestnut-brown eyes, ochre facial disk, and dark chocolate brown plumage with white tail bars. It is a nocturnal hunter that preys on small mammals, birds, and insects.

Key Facts

  • Inhabits humid tropical forests, open woodlands, and Araucaria forests.
  • Found in northeastern Argentina, Brazil, and eastern Paraguay.
  • Distinctive creamy 'brows' and ochre facial disk.
  • Nocturnal hunter with a diet of small mammals, birds, and large insects.
  • Typically lays a clutch of two eggs in a tree cavity.
  • Assessed as 'Least Concern' by the IUCN, though considered uncommon.
Tawny-browed owl
Scientific Name
Pulsatrix koeniswaldiana
Habitat

Humid Tropical Forest, Open Woodland, Forest Dominated By Araucaria Evergreens

Geographic Range

Argentina, Brazil, Paraguay

Physical Description
The Tawny-browed owl is approximately 44 cm (17 in) in length. It features a brown facial disk surrounded by ochre, a white chin patch, and creamy 'brows' above chestnut-brown eyes. The breast, upperparts, and tail are dark chocolate brown, with the tail exhibiting white bars. The belly is buff, and the remaining underparts are light ochre. Juveniles are initially almost entirely white and acquire adult plumage over several years.
Size Range Cm
44
Diet

Small Mammals, Birds, Large Insects, Small Vertebrates

Vocalization
The male Tawny-browed owl produces a low, descending sequence of guttural, ventriloquial notes, described as 'brrr brrr brrr brrr' or 'ut ut ut ut ut,' which accelerate and become weaker at the end. The female responds with a higher-pitched call.
Average Weight Kg
0.331-0.670
Nesting Habits
Eggs are laid in a tree cavity.
Number Of Eggs
Two

About Tawny-browed owl

The Tawny-browed Owl

The Tawny-browed owl (Pulsatrix koeniswaldiana) is a species of owl found in the humid tropical forests of South America, specifically in Argentina, Brazil, and Paraguay. It is recognized by its distinctive physical characteristics, including a brown facial disk bordered by ochre, a patch of white on its chin, and prominent creamy "brows" above its chestnut-brown eyes. The owl's plumage is predominantly dark chocolate brown on its breast, upperparts, and tail, with the tail marked by white bars.

Distribution and Habitat

This owl inhabits a range from Espírito Santo state in Brazil down to northern Rio Grande do Sul, extending into the adjacent eastern regions of Paraguay and northeastern Argentina. Its preferred environments include humid tropical forests, open woodlands, and forests characterized by Araucaria evergreens. The species can be found at elevations ranging from sea level up to approximately 1,500 meters (4,900 feet).

Behavior and Diet

The Tawny-browed owl is a nocturnal predator, actively hunting from a perch within the forest canopy. Its diet primarily consists of small mammals, birds, and large insects, though it is believed to also consume other small vertebrates. The male owl's vocalization is described as a low, descending sequence of guttural, ventriloquial notes, while the female responds with a higher-pitched call.

Breeding and Conservation

Information on the breeding habits of the Tawny-browed owl is limited, with its specific nesting season not yet determined. Typically, a clutch of two eggs is laid in a tree cavity, and the female is responsible for incubation. Both parents participate in caring for the young after they have fledged. The International Union for Conservation of Nature (IUCN) lists the Tawny-browed owl as 'Least Concern.' Despite this classification, the species is considered relatively rare or uncommon, and its Atlantic Forest habitat has faced significant reduction and fragmentation.

Source: Wikipedia ↗

Frequently Asked Questions

What is the scientific name of the Tawny-browed owl?

The scientific name of the Tawny-browed owl is Pulsatrix koeniswaldiana. It belongs to the family Strigidae.

Where can the Tawny-browed owl be found?

This owl species is distributed in Brazil from Espírito Santo state south to northern Rio Grande do Sul, as well as in adjacent areas of eastern Paraguay and northeastern Argentina.

What does a Tawny-browed owl look like?

It is approximately 44 cm long, with a brown facial disk edged in ochre, a white chin patch, and creamy 'brows' above chestnut-brown eyes. Its upperparts and tail are dark chocolate brown with white bars, and its belly is buff.

What does the Tawny-browed owl eat?

The Tawny-browed owl is a nocturnal predator that hunts from a perch in the canopy. Its diet consists of small mammals, birds, large insects, and likely other small vertebrates.

What are the nesting habits of the Tawny-browed owl?

The breeding phenology of the Tawny-browed owl is not well-studied, and its exact nesting season is undetermined. Eggs are typically laid in a tree cavity, with the female undertaking incubation.

What is the conservation status of the Tawny-browed owl?

The International Union for Conservation of Nature (IUCN) has assessed the Tawny-browed owl as 'Least Concern'. However, it is considered to be relatively rare or at best uncommon, and its Atlantic Forest habitat has been significantly reduced and fragmented.