Photo: Nigel J. Collar / CC BY 3.0 (Wikimedia Commons)
Rück’s Blue Flycatcher
Cyornis ruckii
Rück's Blue Flycatcher (Cyornis ruckii) — Songbirds & Perching Birds of South & Southeast Asia.
The Rück’s Blue Flycatcher (Cyornis ruckii) is a member of the Muscicapidae family found in South & Southeast Asia. Adults weigh 20.5 g. The IUCN Red List lists it as Critically Endangered.
Conservation status
IUCN Red List (opens in a new tab)Facing an extremely high risk of extinction in the wild.
Where it fits
- Class Aves
- Order Passeriformes
- Family Muscicapidae Chats, Old World Flycatchers
- Genus Cyornis
- Species ruckii
Quick facts
- Weight
- 20.5 g
- Diet
- Invertebrate-eaters
- Family
- Muscicapidae
- Order
- Passeriformes
- Habitat
- Woodland
How to identify
Similar birds
Least Concern
Near Threatened
Vulnerable
Biology & behaviour
Diet
The Rück’s Blue Flycatcher is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Behaviour
A bird of dense forest, it spends much of its time perched in trees and shrubs.
The Rück’s Blue Flycatcher (Cyornis ruckii) belongs to the Muscicapidae family of the order Passeriformes. Its range spans South & Southeast Asia. Its distribution covers OR n Sumatra (no records since 1918).
It is a small bird. Adults weighs around 20.5 g, with a wing length of about 7.7 cm and a tail of around 6 cm.
It is classified as Critically Endangered on the IUCN Red List and is a focus of conservation concern. Critically Endangered is the highest risk category before extinction in the wild.
The species has a mapped global range of roughly 5,573 km² — a relatively restricted global range.
Frequently asked questions
How big is the Rück’s Blue Flycatcher?
The Rück’s Blue Flycatcher is a small bird that weighs around 20.5 g.
Where does the Rück’s Blue Flycatcher live?
The Rück’s Blue Flycatcher is found across South & Southeast Asia with a range covering OR n Sumatra (no records since 1918), where it is typically found in wooded and forested habitats.
What family does the Rück’s Blue Flycatcher belong to?
The Rück’s Blue Flycatcher (Cyornis ruckii) belongs to the Muscicapidae family, in the order Passeriformes.
What does the Rück’s Blue Flycatcher eat?
The Rück’s Blue Flycatcher is a invertivore — it feeds mainly on invertebrates such as insects and other small prey.
Is the Rück’s Blue Flycatcher endangered?
It is classified as Critically Endangered on the IUCN Red List and is a focus of conservation concern Critically Endangered is the highest risk category before extinction in the wild.
How large is the Rück’s Blue Flycatcher's range?
The Rück’s Blue Flycatcher has a mapped global range of about 5,573 km².
Conservation
Every bird benefits from bird-safe windows, native plants, and keeping cats indoors. Small changes at home add up to real protection.
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