Wednesday, August 16

Himalayan owl

   ›      ›   Himalayan owl - Strix nivicolum

The Himalayan owl (Strix nivicolum) belongs to the family of true owls, Strigidae.

The Himalayan owl species are distributed in India, Nepal, Bhutan, China, North Korea, South Korea, Taiwan, Myanmar, Thailand, Laos and Vietnam. Until recently these owl species were considered conspecific with Strix aluco. These owls are polytypic species.

Overview & Quick Facts Description & Identification
Pictures of Himalayan Owl Distribution & Range
Ecosystem & Habitat Diet & Feeding Behavior
Breeding Habits Migration & Movement Patterns
Conservation & Survival IUCN Status
Taxonomy & Classification Bird World

Himalayan owl - Overview

  • Scientific name: Strix nivicolum
  • Species author: (Blyth, 1845)
  • Synonyms/Protonym: Syrnium nivicolum Blyth, 1845
  • Family: Strigidae › Strigiformes › Aves › Chordata › Animalia
  • Vernacular names: English: Himalayan owl, Chinese: 灰林鸮, French: Chouette de l’Himalaya, German: Himalajakauz, Spanish: Cárabo del Himalaya, Russian: Himalayan Owl, Japanese: ヒマラヤフクロウ
  • Other names: Himalayan wood-owl, Chinese tawny owl
  • Distribution: India, Nepal, Bhutan, China, North Korea, South Korea, Taiwan, Myanmar, Thailand, Laos, Vietnam
  • Diet and feeding habits: insects, small mammals, small birds
  • IUCN status listing: Least Concern (LC)

Appearance, physical description and identification

The Himalayan owl (Strix nivicolum) is a medium-sized bird, measuring 35 to 40 cm in length and weighing 370 to 390 grams.

The Himalayan owl appears very similar to tawny owl with some minute differences. It has a round head and lacks ear-tufts. The overall plumage is dark brown with buff, brown and black mottling. The tail is short and strongly barred. There is a diffuse white half collar.

The bill is pale greenish yellow. The eyes are dark brown. The talons are pale yellow. The Himalayan owl call consists of two clear, rapid hooting “huhu” sound repeated with a space of several seconds.
Indian birds - Image of Himalayan owl - Strix nivicolum
Birds of India - Image of Himalayan owl - Strix nivicolum by Mousam ray

Origin, geographical range and distribution

The Himalayan owl species are distributed in India, Nepal, Bhutan, China, North Korea, South Korea, Taiwan, Myanmar, Thailand, Laos and Vietnam.

In India, these species are distributed in the states of Jammu and Kashmir, Himachal Pradesh, Punjab, Haryana, Uttarakhand, Uttar Pradesh, Sikkim, Assam and Arunachal Pradesh.

The Himalayan owl nominate subspecies S. n. nivicolum is distributed in India, Nepal, Bhutan, southeast China, north Myanmar, north Thailand, north Laos and north Vietnam.

The subspecies S. n. ma is distributed in northeast China, North Korea and South Korea. The subspecies S. n. yamadae is distributed in Taiwan.

Ecosystem and habitat

These Himalayan owl species have moderate forest dependence. These species normally occur in altitudes from 0 to 2350 meters.

The artificial ecosystems of these owl species include agricultural fields, pasturelands, plantations, rural gardens, degraded forests and urban areas.

The natural ecosystems of these species include tropical and subtropical dry forests, coniferous forests, temperate forests, oak forests, Mediterranean-type shrublands, montane forests and rocky ravines and temperate shrublands.

Diet and feeding behavior

The diet of the Himalayan owl is reported to consist mainly of insects. A variety of insects like mantids, locusts, grasshoppers, cicadas, beetles, moths, termites and also small vertebrates like rodents and birds are their primary food.

Reproduction and breeding habits

The breeding season of the Himalayan owl species is believed to be from December to April. These birds are monogamous. Their nesting sites include tree cavities and crevices in rocks.

Migration and movement patterns

The Himalayan owl species are non-migratory resident birds. Birds in higher elevations may move to lower levels and plains in winter.

Post breeding, the juveniles may disperse and establish in new locations within the range. They may make local movements for feeding and breeding within their range.

Conservation and survival

The global population size of the Himalayan owl (Strix nivicolum) has not been quantified. The overall population trend of these species is reported to be stable.

Throughout its range this species is reported to be fairly common. The generation length is 8 years. Its distribution size is about 8,660,000 sq.km.

Habitat degradation and fragmentation and capture of adults and juveniles for pet trade are the main threats that may endanger the survival of these owl species.

IUCN and CITES status

The Himalayan owl (Strix nivicolum) does not approach the thresholds for being Vulnerable, either under the range size criterion, or under the population trend criterion or under the population size criterion.

The IUCN (International Union for Conservation of Nature) has categorized and evaluated the owl species and has listed it as of "Least Concern". The CITES (Convention on International Trade in Endangered Species of Wild Fauna and Flora) status is ‘Evaluated’ for Himalayan owl (Strix nivicolum) and listed in Appendix II.
Taxonomy and scientific classification of Strix nivicolum
Kingdom:Animalia
Phylum:Chordata
Class:Aves
Order:Strigiformes
Family:Strigidae
Subfamily:-
Genus:Strix
Species:S. nivicolum
Binomial name:Strix nivicolum
IUCN status listing:
Least Concern
The Himalayan owl (Strix nivicolum) is closely related to tawny owl(Strix aluco).

The three recognized subspecies of the Himalayan owl (Strix nivicolum) are: Strix nivicolum nivicolum (Blyth, 1845), Strix nivicolum ma (A. H. Clark, 1907) and Strix nivicolum yamadae Yamashina, 1936.
Popular posts in Birds of India
Black-winged kite Red kite
Black kite Brahminy kite
White-bellied sea eagle Pallas's fish eagle
White-tailed sea-eagle Lesser fish eagle
Grey-headed fish-eagle Bearded vulture
Tufted duck Greater scaup
Long-tailed duck Common goldeneye
Smew Common merganser
Tundra swan Mute swan
Whooper swan Yellow bittern
Laughing dove Fork-tailed drongo-cuckoo
Dalmatian pelican Little swift
River lapwing Swinhoe's snipe
Small pratincole Little gull
Eastern spotted dove Asian (western) koel
Spot-billed pelican Great barbet
Yellow-rumped honeyguide Eurasian wryneck
Square-tailed drongo-cuckoo Red turtle dove
Black-headed gull Collared pratincole
Brown-backed needletail Stork-billed kingfisher
Blue-tailed bee-eater Malabar pied hornbill
Lesser frigatebird Ward's trogon
European roller Blyth's kingfisher
Pallas's sandgrouse Yellow-eyed pigeon
Plum-headed parakeet Whistling hawk-cuckoo
Great white pelican Sykes's nightjar
Edible-nest swiftlet Indian roller
Common kingfisher South polar skua
Pin-tailed sandgrouse Common wood pigeon
Blossom-headed parakeet Indian cuckoo

Image information
1.Image source: https://en.wikipedia.org/wiki/File:Himalayan_Wood_Owl.jpg (cropped)
Image author: Mousam ray | License: CC BY-SA 4.0
Current topic in Birds of India: Himalayan owl - Strix nivicolum.
Contact State Tourism or travel agents for bird watching and wildlife tours.