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🧬 Biological Classification (Kingdom to Species)Ketupa blakistoni

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Strigiformes

Family

Strigidae

Genus

Ketupa

Species

Ketupa blakistoni

Aves🥩 Carnivore

Blakiston's Fish Owl

Ketupa blakistoni (Blakiston's Fish Owl · Blakiston's Fish Owl)

🛡️ Conservation Status (IUCN Red List)VU (Vulnerable)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

Geological Era

Extant

Diet

Carnivore

Length · Height

60~71cm · No data (Wingspan 2m)

Mass · Top Speed

2.7~4kg · No data

Habitat & Fossil Locality

Temperate riverside forests with open water that does not freeze in winter and large trees with nest cavities

💡 Everyday Comparisons for Size, Mass & Speed

💡 A maximum wingspan of 2 m is taller than an adult human, and a maximum weight of 4 kg is about two-fifths (2/5) of a 10 kg bag of rice (Comparison).
💡 Because it is a fish-eating owl, it can only live where both clear rivers and large trees are present together (ADW habitat description).

Reference standards: coach bus ~12 m, mid-size car ~4.9 m, compact car ~1 t, basketball hoop 3.05 m, credit card 8.56 cm.

📊 Mass & Speed Index (0–100)

⚖️ Mass Index (Blue Whale ~190 t = 100, log scale)41

Site-computed relative index from recorded values; not a formal scientific metric.

#섬부엉이#Ketupa blakistoni

📖 1. Overview

Blakiston's fish owl is a large fish-eating owl that lives in riverside forests. It requires open water where it can catch fish and large trees with nest cavities to survive. On the IUCN Red List, it is assessed as Vulnerable (VU, 2025 assessment).

🦴 2. Anatomy & Morphology

With a body length of 60–71 cm, a wingspan of up to about 2 m, and a weight of 2.7–4 kg, it is among the larger owls, and males are smaller than females.

🔍 3. Ecology & Behavior

It catches fish from open water or holes in the ice, and also hunts crayfish and frogs in shallow water or on the ground. In harsh winters, it also eats mammals and waterfowl. It lays 1–3 eggs per clutch and breeds on average about once every 2 years.