🪐 View in 3D Galaxy 📏 View on 3D Scale Stage

🧬 Biological Classification (Kingdom to Species)Calidris tenuirostris

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Charadriiformes

Family

Scolopacidae

Genus

Calidris

Species

Calidris tenuirostris

Aves🥩 Carnivore

Great Knot

Calidris tenuirostris (Great Knot · オバシギ)

🛡️ Conservation Status (IUCN Red List)EN (Endangered)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

🇰🇷 Class II endangered wildlife (Korea)

Geological Era

Extant

Diet

Carnivore

Length · Height

27cm · No data

Mass · Top Speed

145g · No data

Habitat & Fossil Locality

Rocky mountain tundra of northeastern Siberia for breeding; wide tidal flats and adjoining beaches from the Middle East to Australia in the non-breeding season

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its mass of about 145 g is around two and a half chicken eggs (one egg is about 60 g) (Comparison).
💡 Its body length of about 27 cm is slightly shorter than the long side of an A4 sheet of paper (29.7 cm) (Comparison).

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)26

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

#붉은어깨도요#Calidris tenuirostris

📖 1. Overview

The great knot is a sandpiper that breeds in northeastern Siberia and winters across wide tidal flats stretching from the Middle East to Australia. On the IUCN Red List, it is Endangered (EN).

🦴 2. Anatomy & Morphology

It is a medium-sized sandpiper about 27 cm long and weighing about 145 g.

🔍 3. Ecology & Behavior

In northwestern Australia it eats small bivalves, gastropods, brachiopods, and crustaceans such as shrimp and crabs. During the breeding season pairs live scattered at low density and lay 4 eggs in a mossy hollow on the ground.