📸 PhotoPhoto: JJ Harrison · CC BY-SA 3.0 · Wikimedia Commons Source
Australian Owlet-nightjar
Aegotheles cristatus (Australian Owlet-nightjar · オーストラリアズクヨタカ)
💡 Everyday Comparisons for Size, Mass & Speed
- 💡 Its maximum body length of 25 cm is slightly shorter than a 30 cm ruler (Comparison).
- 💡 Featured by BirdLife Australia's backyard bird program Birds in Backyards, it is said to live almost anywhere there are open woods with tree hollows.
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 Australian Owlet-nightjar is a small nocturnal bird living in Australia that uses tree hollows as its roost.
🦴 2. Anatomy & Morphology
It is a small bird with an average body length of 23 cm (21–25 cm).
🔍 3. Ecology & Behavior
At night it feeds on a variety of insects, hunting either in flight or from a perch. Pairs defend the same territory year-round, and in July–December (months 7–12) they line a tree hollow or rock crevice with green leaves and lay 2–5 eggs.
🇰🇷 4. Connection to Korea
No direct record connecting this species to Korea has been found.
📚 Sources & References
- • IUCN Red List LC (2024) — https://www.iucnredlist.org/species/22689555/263683298
- • IUCN Red List category LC — latest assessment at iucnredlist.org
- • doi.org — avilist.v2026
- • iucnredlist.org — 263683298
- • wikidata.org — Q781928
- • commons.wikimedia.org — File:Australian owlet-nightjar A22I9928.jpg
- • birdsinbackyards.net — Aegotheles-cristatus
- • Silhouette: PhyloPic — Ferran Sayol · CC0 1.0 (Congeneric silhouette — Aegotheles savesi)
Recorded dimensions are widely cited representative estimates from public literature and may vary by study or specimen.