Jungle Owlet

Glaucidium radiatum

Family: Strigidae (Typical Owls) Global: LC National: LC

Jungle Owlet

  • Scientific Name: Glaucidium radiatum
  • Nepali Name(s): डुन्डुल (Dundul)
  • IUCN Red List Status: Least Concern (LC)
  • National Red List Status (Nepal): Least Concern (LC)
  • CITES Appendix: Appendix II

Measurements & Physical Profile

  • Body Length: 17–22 cm
  • Wingspan: 120–136 cm
  • Weight: 60–115 g

Did You Know?

Unlike most owls that are strictly nocturnal, the Jungle Owlet is highly diurnal and crepuscular. You will often see them calling and hunting in bright sunlight! They are expert natural pest controllers, consuming massive quantities of forest insects.

Distribution and Habitat

Global Distribution

Endemic to the Indian subcontinent, found throughout India, Nepal, Bhutan, and parts of Bangladesh.

Distribution within Nepal

A common resident across the Tarai, Siwaliks, and lower-to-mid hill forests. It is well-represented in protected areas like Chitwan and Bardia National Parks.

Preferred Habitats

Favors open, deciduous forests, secondary growth, forest edges, and cultivated areas with scattered, large mature trees.

Elevational Range

Occurs from the lowland plains up to approximately 1,500 meters above sea level.

Behavior and Ecology

Activity Patterns

Primarily diurnal and crepuscular. It exhibits a direct, undulating flight and is often observed perching conspicuously on exposed branches to "sit-and-wait" for prey.

Diet & Ecosystem Role

  • Diet: Primarily insectivorous (large beetles, grasshoppers, crickets). Opportunistically predates on small lizards, geckos, and occasionally small birds or mice.
  • Ecosystem Role: Acts as a vital indicator of forest health; its role as a mid-level predator regulates insect populations, maintaining the balance of forest-floor and canopy arthropod communities.

Breeding Biology

The breeding season runs from March to May. Secondary cavity nester; utilizes abandoned woodpecker holes or natural rot-holes in mature trees, typically 3–10 meters above the ground. Clutch size is 2 to 4 white, rounded eggs, laid directly on existing cavity debris. Incubation lasts 28–30 days (primarily by the female); fledging occurs after approximately 4 weeks.

Migration

  • Status: Resident.
  • Movement: Non-migratory; maintains a stable home range throughout the year.

Population Status

  • Global Population: Unknown.
  • Population Trend: Decreasing.
  • National Population (Nepal): Unknown.

Threats

  • Habitat Loss: Deforestation and the removal of large, mature, or decaying "hollow" trees are the greatest threats to their nesting success.
  • Pesticide Bioaccumulation: The loss of insect biomass due to heavy pesticide application in agricultural zones near forest fringes directly impacts their food supply.
  • Disturbance: Sensitive to excessive human activity near nesting sites.

Conservation Actions

Existing measures

Currently, no species-specific conservation programs exist for the Jungle Owlet. However, its vital habitats are safeguarded within Nepal's network of protected areas and community-managed forests.

Recommended Measures

  • Cavity Retention: Prioritize the retention of dead and dying cavity-bearing trees within community forestry programs.
  • Pesticide Management: Promote organic farming practices in agricultural areas adjacent to forest edges to maintain a healthy prey base.

References

  1. BirdLife International (2026). Species factsheet: Glaucidium radiatum.
  2. Ferguson-Lees, J., & Christie, D. A. (2001). Raptors of the World. Christopher Helm.
  3. Holt, D. W., et al. (2020). Jungle Owlet (Glaucidium radiatum). In Birds of the World. Cornell Lab of Ornithology.
  4. König, C., & Weick, F. (2008). Owls of the World. Christopher Helm.
  5. Inskipp, C., et al. (2016). The Status of Nepal’s Birds: The National Red List Series. Royal Zoological Society of London.
  6. The Peregrine Fund (2026). Global Raptor Information Network.