Red-flanked Bluetail

Tarsiger cyanurus (Pallas, 1773) REFBL 11130
Family: Passeriformes > Muscicapidae

Red-flanked Bluetail, Graham Catley

Once regarded as an extreme vagrant, records of this relative of the Robin have increased dramatically, likely following a marked population increase in the forests of eastern Finland, where it was first recorded breeding in the 1940s.

This migratory species breeds from Finland east to Kamchatka and winters across parts of China.

Select a topic for more facts and statistics about the Red-flanked Bluetail

1.9k records observations recorded by BTO surveyors
1.9k records



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Status and Trends

Population size and trends and patterns of distribution based on BTO surveys and atlases with data collected by BTO volunteers.


This species can be found on the following statutory and conservation listings and schedules.


We have no population estimates for this scarce species.


This species is a rare vagrant and was recorded during Bird Atlas 2007–11 as shown on the map.

Occupied 10-km squares in UK

European Distribution Map

European Breeding Bird Atlas 2


This vagrant is too rarely reported to map distribution change.


Red-flanked Bluetail is a rare vagrant, though increasing; usually recorded in October there are now some spring records, presumably involving birds that have overwintered undetected or further south.

Weekly occurence of Red-flanked Bluetail from BirdTrack
Weekly occurrence patterns (shaded cells) and reporting rates (vertical bars) based on BirdTrack data. Reporting rates give the likelihood of encountering the species each week.


Information about movement and migration based on online bird portals (e.g. BirdTrack), Ringing schemes and tracking studies.


View a summary of recoveries in the Online Ringing Report.


Lifecycle and body size information about Red-flanked Bluetail, including statistics on nesting, eggs and lifespan based on BTO ringing and nest recording data.


Sample sizes are too small to report Productivity and Nesting statistics for this species.


Sample sizes are too small to report Biometrics for this species.

Feather measurements and photos on featherbase


For information in another language (where available) click on a linked name

Welsh: Cynffonlas Ystlysgoch
Catalan: cotxa cuablava
Czech: modruška tajgová
Danish: Blåstjert
Dutch: Blauwstaart
Estonian: sinisaba
Finnish: sinipyrstö
French: Robin à flancs roux
German: Blauschwanz
Hungarian: kékfarkú
Icelandic: Bláskotta
Italian: Codazzurro
Latvian: rudsanu zilastite
Lithuanian: paprastoji melynuodege
Norwegian: Blåstjert
Polish: modraczek (zwyczajny)
Portuguese: pisco-de-flanco-ruivo
Slovak: modravec cervenoboký
Slovenian: plavšcica
Spanish: Ruiseñor coliazul
Swedish: tajgablåstjärt

Links to more information from

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