📸 PhotoPhoto: The original uploader was Snowyowls at Chinese Wikipedia . · CC BY-SA 1.0 · Wikimedia Commons Source
Daurian Jackdaw
Coloeus dauuricus (Daurian Jackdaw · コクマルガラス)
Not Evaluated (NE) on the IUCN Red List yet.
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its body length of 33 cm is slightly longer than a 30 cm ruler (Comparison).
- 💡 A migratory bird that visits in winter, it always travels in large flocks when it arrives (National List of Species of Korea).
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.
📖 1. Overview
The Daurian jackdaw is a small crow species with a black body and greyish-white collar and underparts, and is an uncommon winter visitor in Korea.
🦴 2. Anatomy & Morphology
Its crown and back of the head are glossy purplish-black, while its broad collar and underparts are greyish-white. Its tail, back, and legs are glossy black.
🔍 3. Ecology & Behavior
It is omnivorous and always forms large flocks. On its breeding grounds, it lays 4–6 eggs between May and September (months 5–9).
🇰🇷 4. Connection to Korea
According to the National List of Species of Korea, it is an uncommon winter visitor whose domestic distribution is recorded at Jangjinho and Pungsan.
📚 Sources & References
- • IUCN Red List: not evaluated (NE) — cross-checked with the Wikidata conservation-status entry
- • doi.org — avilist.v2026
- • 국가생물종목록(국립생물자원관) ktsn 120000001964 — https://species.nibr.go.kr/home/mainHome.do?cont_link=009&subMenu=009002&contCd=009002&ktsn=120000001964
- • wikidata.org — Q27075327
- • commons.wikimedia.org — File:Dwlhany.jpg
- • species.nibr.go.kr — mainHome.do
- • Silhouette: PhyloPic — Birgit Lang · CC0 1.0 (Congeneric silhouette — Coloeus monedula)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.