Red-flanked Bluetail (Tarsiger cyanurus)
Illustration redrawn by AI from a real photograph

Red-flanked Bluetail

Tarsiger cyanurus (Pallas, 1773)

≈14 cmLength13 gWeight

This bird has orange-red flanks and a blue tail and rump, and often quivers its tail while perched.

Busiest months: April and December · Most records: China, Japan, South Korea

Least Concern

How to identify

Field marks

  1. Orange flanks contrasting with a white belly
  2. Tail and rump blue
  3. Throat white; bill small, fine and black
  4. Legs and feet slender and black

Male, female and young

Male upperparts deep blue; female and immature male with rufous-brown upperparts, blue confined to the rump and tail, and a dusky breast.

Voice

Call is the “tacc” typical of chats; male sings melancholy trills from treetops.

Where and when it's recorded

Red-flanked Bluetail has been recorded at 990 of the 8,171 birding hotspots we track, in 33 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Yeliu IBATaiwan (China)1,996 records
  2. Nanhui DongtanChina1,063 records
  3. Century ParkChina527 records
More places
  1. Po ToiHong Kong (China)415 records
  2. Tai Po Kau Nature ReserveHong Kong (China)404 records
  3. Hangzhou Botanical GardenChina387 records
  4. Jiangyangfan Eco-ParkChina295 records
  5. Seoul – ChanggyeonggungSouth Korea266 records
  6. Matsu – DongyinChina257 records
  7. Kinmen – Doumen Hiking TrailChina248 records

Countries and regions with the most records

ChinaJapanSouth KoreaUnited KingdomMongoliaThailandRussiaVietnam

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The red-flanked bluetail (Tarsiger cyanurus), also known as the orange-flanked bush-robin, is a small passerine bird in the Old World flycatcher family. It breeds in mixed coniferous forests in northern Asia, parts of central Asia, and northeastern Europe. It is migratory, wintering mainly in southeast Asia, in the Indian subcontinent, the Himalayas, Taiwan (China), and northern Indochina.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Red-flanked Bluetail?

The Red-flanked Bluetail is about ≈14 cm long and weighs around 13 g.

Where does the Red-flanked Bluetail live?

Its breeding range: Palearctic: northern Eurasia from Finland to Japan. It is most often recorded in China, Japan and South Korea.

When is the best time to see the Red-flanked Bluetail?

At the hotspots we track, it is recorded most in April and December (Northern Hemisphere).

Is the Red-flanked Bluetail endangered?

The IUCN Red List classifies the Red-flanked Bluetail as Least Concern.

What does the Red-flanked Bluetail eat?

Main food: Insects & other invertebrates.

What family is the Red-flanked Bluetail in?

It belongs to the family Chats, Old World Flycatchers (Muscicapidae), order Passerines (Passeriformes).

At a glance

Length
≈14 cm
Weight
13 g
Habitat
Forest
Diet
Insects & other invertebrates
Lifestyle
Varied
Migration
Migratory
Conservation
Least Concern
More measurements
Wing
78 mm
Tail
60 mm
Bill
12 mm
Tarsus
21 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Palearctic: northern Eurasia from Finland to Japan

Breeding range, IOC World Bird List 15.2

Classification

Order
Passerines Passeriformes
Family
Chats, Old World Flycatchers Muscicapidae
Genus
Tarsiger

Other birds in the genus Tarsiger

Red-flanked Bluetail

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by M.Nishimura. ↗

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