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🧬 Biological Classification (Kingdom to Species)Anas acuta

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Anseriformes

Family

Anatidae

Genus

Anas

Species

Anas acuta

Aves🍂 Omnivore

Northern Pintail

Anas acuta (Northern Pintail · オナガガモ)

🛡️ Conservation Status (IUCN Red List)LC (Least Concern)

DDData Deficient

LCLeast Concern

NTNear Threatened

VUVulnerable

ENEndangered

CRCritically End.

EWExtinct in Wild

EXExtinct

Geological Era

Extant

Diet

Omnivore

Length · Height

58.5~76cm · No data (Wingspan 0.91m)

Mass · Top Speed

0.45~1.4kg · No data

Habitat & Fossil Locality

Marshes, ponds, lakes, rivers, canals, and grain fields such as rice, barley, and wheat; estuaries and reservoirs in winter

💡 Everyday Comparisons for Size, Mass & Speed

💡 Its maximum wingspan of 91 cm is slightly longer than the width of a rice sack, and its maximum weight of 1.36 kg is slightly lighter than one 1.5 L bottle of water (Comparison).
💡 In winter, large flocks can be seen on reservoirs, estuaries, and wetlands near rice paddies and fields (National List of Species of Korea).
💡 One of the most popular game ducks during duck hunting season in many parts of the world, money spent by hunters supports the economies of towns along migratory flyways (ADW, 'Economic Importance for Humans: Positive').

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)32

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

#고방오리#Anas acuta

📖 1. Overview

The Northern Pintail is a large duck with a long neck and a long, pointed tail that breeds in northern Eurasia and North America and migrates to temperate and tropical regions in winter. In Korea it is a common winter visitor.

🦴 2. Anatomy & Morphology

Males are dark brown from the head to the back of the neck with a white lower neck and breast and very long, pointed central tail feathers. Females are brown overall with a black bill. In flight, the inner wing feathers flash green in males and bronze in females.

🔍 3. Ecology & Behavior

Submerging its head and forebody with its tail tipped up, it feeds on snails, water bugs, and aquatic plant roots, and also eats rice, wheat, barley, and insects in grain fields. Famous for flying long distances in a short time in winter, a bird banded in Canada was recovered in England 9 days later.