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Buffy fish owl

The buffy fish owl (Ketupa ketupu), also known as the Malay fish owl, is a species of fish owl native to Southeast Asia. It is distinguished by its prominent ear tufts, powerful talons adapted for fishing, and a distinctive morose facial expression due to its bill placement. Primarily inhabiting tropical forests and wetlands, it is a nocturnal predator with a varied diet.

Key Facts

  • Native to Southeast Asia, found in tropical forests and wetlands near water bodies.
  • Has prominent ear tufts and a distinctive bill placement giving it a morose expression.
  • Feeds mainly on fish, but also consumes crabs, frogs, small reptiles, birds, and carrion.
  • Hunts by perching on banks and swooping down to snatch prey, or by wading into shallows.
  • Lays only one egg per breeding season, which is the smallest clutch size among owls.
  • Listed as least concern on the IUCN Red List due to its wide distribution and stable population.
Buffy fish owl
Scientific Name
Ketupa ketupu
Common Names

Malay Fish Owl

Habitat

Tropical Forests, Freshwater Wetlands, Rivers, Lakes, Aquaculture Sites, Plantations, Rural Gardens, Urban Gardens

Geographic Range

Southeast Asia, Sunda Islands

Physical Description
The buffy fish owl is a buff brown owl with darker tawny brown feathers on its back and paler facial features, including light brown eyebrows. It possesses prominent ear tufts on the sides of its head. Its wings and tail are broadly barred with yellowish and dark brown, and its wings are distinctly rounded. The underparts range from yellowish brown to rich buff or fulvous, marked with broad, blackish shaft stripes. It has long, unfeathered legs. A distinctive feature is its bill, placed between the eyes, which contributes to a morose expression. Its talons are large and powerful, similar to those of eagle owls.
Size Range Cm
40 to 48 cm (16 to 19 in)
Diet

Fish, Crabs, Frogs, Small Reptiles, Birds, Carrion, Insects, Winged Ants, Winged Termites

Vocalization
A range of vocalizations has been attributed to the buffy fish owl, including hissing sounds, a rattling 'kutook' repeated rapidly, a ringing, loud 'pof-pof-pof', and a high, hawk-like 'hie-e-e-e-e-keek' series of notes. Pairs may engage in duetting.
Average Weight Kg
1.028 to 2.1 kg (36.3 to 74.1 oz)
Breeding Season
February through April (western Java), September through January (Malay Peninsula)
Nesting Habits
The buffy fish owl frequently nests on top of large ferns (Asplenium nidus), but nests have also been recorded in tree forks, on orchid beds, in tree holes, and rarely on rocky sites. Nests are often a scrape into the surface of a fern with no structure or lining, though abandoned nests of other species have been used.
Number Of Eggs
One egg per clutch
Social Behavior
During the daytime, buffy fish owls shelter, often singly, in densely foliaged trees. They are known to be rather noisy before breeding, with pairs engaging in duetting.

About Buffy fish owl

The buffy fish owl, scientifically known as Ketupa ketupu and also referred to as the Malay fish owl, is a medium-sized fish owl native to the diverse ecosystems of Southeast Asia. It is a member of the Strigidae family and is recognized for its distinctive physical characteristics, including prominent ear tufts and a bill placement that lends it a perpetually morose expression.

Habitat and Distribution

This species thrives in tropical forests and freshwater wetlands, often found near rivers, lakes, and aquaculture sites. Its range extends from Bangladesh and Myanmar across Thailand, Malaysia, and Singapore, to Cambodia, Laos, Vietnam, and the Sunda Islands. The buffy fish owl can also adapt to human-modified environments, inhabiting plantations and rural and urban gardens, and can be found up to elevations of 1,600 meters.

Physical Characteristics and Behavior

Adult buffy fish owls measure between 40 to 48 cm in length and weigh between 1,028 to 2,100 grams, making it the smallest among fish owl species. Its plumage is predominantly buff brown with darker tawny brown feathers on the back, a paler face, and light brown eyebrows. The wings and tail feature broad yellowish and dark brown bars, while the underparts are a rich buff or fulvous. Unique adaptations for its piscivorous diet include large, powerful talons. Unlike many other owls, its feathers lack the specializations for silent flight, resulting in audible wing beats. Its hunting strategy involves perching on banks and swooping down to capture prey, or wading into shallow waters, carefully avoiding submersion of its body.

Diet and Reproduction

The buffy fish owl's diet is primarily composed of fish, but it also consumes crabs, frogs, small reptiles, and birds. It is also known to forage on carrion and has been documented eating insects, snakes, and even small mammals like bats. It does not produce firm pellets; instead, indigestible remains are ejected in pieces. Reproduction is marked by a notably small clutch size, with only one egg laid per breeding season. Nests are typically a simple scrape on large ferns or within tree forks, often adorned with moss and orchids. Incubation lasts approximately 28-29 days, with fledging occurring about six weeks later.

Conservation Status

Due to its extensive distribution and a population that is presumed to be stable, the buffy fish owl is classified as Least Concern on the IUCN Red List. Despite this status, it has faced threats from illegal wildlife trade, with numerous instances of birds being offered for sale in markets and online trading groups.

Source: Wikipedia ↗

Frequently Asked Questions

What is the scientific name of the buffy fish owl?

The scientific name of the buffy fish owl is Ketupa ketupu. It was first described by Thomas Horsfield in 1821.

Where does the buffy fish owl live?

The buffy fish owl is distributed across Southeast Asia, including countries like Bangladesh, Myanmar, Thailand, Malaysia, Singapore, Cambodia, Laos, Vietnam, and the Sunda Islands. It inhabits tropical forests and freshwater wetlands.

What does the buffy fish owl eat?

Its primary diet consists of fish, but it also preys on crabs, frogs, small reptiles, and birds. It has also been known to forage on carrion and consume insects.

What makes the buffy fish owl's appearance distinctive?

The buffy fish owl is characterized by its prominent ear tufts and a bill positioned between its eyes, which gives it a notably morose and sinister expression. Its plumage is buff brown with darker tawny brown feathers on the back.

How does the buffy fish owl hunt?

It typically hunts from the bank of water bodies, swooping down to catch prey, or by wading into shallow streams. Unlike many other owls, its feathers are not adapted for silent flight, and its wing beats make noise.

What is the conservation status of the buffy fish owl?

The buffy fish owl is listed as least concern on the IUCN Red List. This is due to its wide distribution and an assumed stable population.

What is unique about the buffy fish owl's nesting and eggs?

The buffy fish owl lays only one egg per breeding season, which is the smallest clutch size recorded for any owl species. Nests are often made in large ferns or tree forks, and the eggs are dull white and oval-shaped.