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🧬 Biological Classification (Kingdom to Species)Helopsaltes pleskei

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Order

Passeriformes

Family

Locustellidae

Genus

Helopsaltes

Species

Helopsaltes pleskei

Aves🥩 Carnivore

Styan's Grasshopper Warbler

Helopsaltes pleskei (Styan's Grasshopper Warbler · ウチヤマセンニュウ)

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

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

15~16cm · No data

Mass · Top Speed

22.8g · No data

Habitat & Fossil Locality

Shrubs (bamboo grass, silver grass, and evergreen forests) on small islands off Korea, Russia, and Japan; winters from southern China to northern Indochina

💡 Everyday Comparisons for Size, Mass & Speed

💡 In a Japanese study, island-breeding birds were weighed one by one, revealing an average male weight of 22.8 g (Bird Research News).
💡 Its weight of 22.8 g is about the weight of three Korean 500-won coins (7.7 g each) (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)17

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

#섬개개비#Helopsaltes pleskei

📖 1. Overview

Styan's Grasshopper Warbler is a small bird that breeds on small offshore islands, including those around the Korean Peninsula, and winters in southern China; it is assessed as Vulnerable (VU) globally.

🦴 2. Anatomy & Morphology

Its upperparts are olive-brown without any reddish tinge, its underparts are grayish-white, and its tail feathers have rounded tips with white edges. Males and females have similar plumage.

🔍 3. Ecology & Behavior

It feeds its chicks soil invertebrates such as woodlice, sandhoppers, and centipedes at first, and later insects such as butterflies, moths, and orthopterans. It lays an average of 3.5 eggs per clutch and incubates them for about 13 days.

🇰🇷 4. Connection to Korea

It is a Class II endangered wildlife species (Korea) in the National List of Species of Korea, with records of breeding on islands off the Korean Peninsula.