Animalia > Chordata > Aves > Strigiformes > Strigidae > Bubo > Bubo blakistoni

Bubo blakistoni (Blakiston's Fish Owl)

Synonyms: Ketupa blakistoni

Wikipedia Abstract

Blakiston's fish owl (Bubo blakistoni) is a fish owl, a sub-group of eagle owls who specialized in hunting riparian areas. This species is a part of the family known as typical owls (Strigidae) which contains most species of owl. Blakiston's fish owl and three related species were previously placed in the genus Ketupa; mtDNA cytochrome b sequence data is equivocal on which genus name is applied for this species. Its habitat is riparian forest, with large, old trees for nest-sites, near lakes, rivers, springs and shoals that don't freeze in winter. Henry Seebohm named this bird after the English naturalist Thomas Blakiston, who collected the original specimen in Hakodate on Hokkaidō, Japan in 1883.
View Wikipedia Record: Bubo blakistoni


Bubo blakistoni blakistoni (Blakiston's fish owl)
Bubo blakistoni doerriesi (Blakiston's fish owl)

Endangered Species

Status: Endangered
View IUCN Record: Bubo blakistoni

EDGE Analysis

Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 7.43133
EDGE Score: 4.2114


Diet [1]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore
Diet - Ectothermic [1]  10 %
Diet - Endothermic [1]  10 %
Diet - Fish [1]  60 %
Diet - Invertibrates [1]  20 %
Forages - Mid-High [1]  10 %
Forages - Understory [1]  10 %
Forages - Ground [1]  20 %
Forages - Water Surface [1]  60 %
Clutch Size [2]  2
Incubation [2]  35 days
Nocturnal [1]  Yes
Wing Span [3]  6.0 feet (1.84 m)


Name Countries Ecozone Biome Species Report Climate Land
Amur meadow steppe China, Russia Palearctic Flooded Grasslands and Savannas
Changbai Mountains mixed forests China, Dem. People's Rep of Korea Palearctic Temperate Broadleaf and Mixed Forests
Da Hinggan-Dzhagdy Mountains conifer forests China, Russia Palearctic Temperate Coniferous Forests
Daurian forest steppe China, Mongolia, Russia Palearctic Temperate Grasslands, Savannas, and Shrublands
Manchurian mixed forests Republic of Korea, Dem. People's Rep of Korea, China, Russia Palearctic Temperate Broadleaf and Mixed Forests
Mongolian-Manchurian grassland China, Mongolia Palearctic Temperate Grasslands, Savannas, and Shrublands
Nenjiang River grassland China Palearctic Flooded Grasslands and Savannas
Northeast China Plain deciduous forests China Palearctic Temperate Broadleaf and Mixed Forests
Suiphun-Khanka meadows and forest meadows China, Russia Palearctic Flooded Grasslands and Savannas

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Botchinsky State Nature Reserve 660710 Khabarovsk, Russia
Komsomolsky Zapovednik Ia 159168 Khabarovsk, Russia
Kurilsky State Nature Reserve 161520 Sakhalin, Russia    
Lazovsky Zapovednik Ia 299030 Primorsky Krai, Russia
Magadan State Nature Reserve 2183959 Magadan, Russia
Norsky State Nature Reserve 521807 Amur, Russia
Sikhote-Alin Biosphere Reserve 991950 Primorsky Krai, Russia
Sikhote-Alinskiy Biosphere Reserve 978001 Russia  
Udege National Park 218935 Primorsky Krai , Russia    

Important Bird Areas

BirdLife Species Factsheet: View Factsheet
Name Location  IBA Criteria   Website   Climate   Land Use 
Inya valley Russia (Asian) A1, A3
Kunashir island Russia (Asian) A1, A3, A4i, A4ii  
Middle reaches of the Bikin river Russia (Asian) A1, A3, A4i
Middle reaches of the Iman river Russia (Asian) A1, A3, A4i
Mukhtel' lake Russia (Asian) A1, A3, A4i  
Nanweng He Nature Reserve China (mainland) A1
Shiretoko, Mount Syari-dake Japan A1, A3, A4i
Udyl' lake Russia (Asian) A1, A3, A4i
Xunbiela He Nature Reserve China (mainland) A1

Biodiversity Hotspots

Name Location Endemic Species Website
Japan Japan No

Prey / Diet

Anas acuta (Northern Pintail)[2]
Anas platyrhynchos (Mallard)[2]
Histrionicus histrionicus (Harlequin Duck)[2]

Prey / Diet Overlap

Competing SpeciesCommon Prey Count
Vulpes vulpes (Red Fox)1

Range Map


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Attributes / relations provided by
1Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
2Blakiston’s Fish-owl, BirdLife International (2001) Threatened birds of Asia: the BirdLife International Red Data Book. Cambridge, UK: BirdLife International.
3del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 WWF WildFINDER
Protected Areas provided by Specially protected natural territories of the Russian Federation, Ministry of Natural Resources and Environment of the Russian Federation
Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access
Audio software provided by SoundManager 2