📸 PhotoPhoto: Tisha Mukherjee · CC BY-SA 4.0 · Wikimedia Commons Source
Large-billed Crow
Corvus macrorhynchos (Large-billed Crow · ハシブトガラス)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 In cities, it tears open plastic bags at garbage collection sites to eat food scraps and even uses wire clothes hangers as nesting material (Bird Research News).
- 💡 It also builds nests in roadside trees and on top of utility poles (Bird Research News).
- 💡 Its body length of 60 cm is slightly shorter than a badminton racket (about 67 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.
Site-computed relative index from recorded values; not a formal scientific metric.
📖 1. Overview
The large-billed crow is a large all-black crow with a thick bill that lives in cities as well as forests.
🦴 2. Anatomy & Morphology
Its entire body is black, and adults show a bluish to purplish metallic sheen on the wing feathers. Its bill is thick with an arched upper mandible.
🔍 3. Ecology & Behavior
An omnivore that eats fruit, insects, small birds and eggs, and carrion, in cities it also tears open garbage bags to eat food scraps. It builds a saucer-shaped nest high in trees or on utility poles and lays 4–6 eggs.
🇰🇷 4. Connection to Korea
It is also distributed on the Korean Peninsula (Bird Research News distribution notes, Japan).
📚 Sources & References
- • IUCN Red List LC (2024) — https://www.iucnredlist.org/species/103727590/264280673
- • IUCN Red List category LC — latest assessment at iucnredlist.org
- • doi.org — avilist.v2026
- • iucnredlist.org — 264280673
- • 국가생물종목록(국립생물자원관) ktsn 120000001967 — https://species.nibr.go.kr/home/mainHome.do?cont_link=009&subMenu=009002&contCd=009002&ktsn=120000001967
- • wikidata.org — Q111674
- • commons.wikimedia.org — File:Large-billed Crow in Bhigwan August 2025 by Tisha Mukhe
- • bird-research.jp — crow.pdf
- • avifauna.hkbws.org.hk — 034200
- • Silhouette: PhyloPic — Marie Attard · Public Domain Mark 1.0 (Congeneric silhouette — Corvus)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.