Tree Swallow

Tachycineta bicolor (Vieillot, 1808) 9830
Family: Passeriformes > Hirundinidae

A stocky aerial insectivore that more resembles a martin than a swallow. Tree Swallow breeds widely across North America and is an extremely rare visitor to Britain.

Added to the British List on the basis of an individual found hawking insects over Porthellick Pool, Isles of Scilly in 1990. The next record came just over a decade later at the other end of the Britain – a bird on Unst, Shetland in May 2002.

Select a topic for more facts and statistics about the Tree Swallow

  • Breeding
  • Winter
9 records observations recorded by BTO surveyors
9 records


9 records observations recorded by BTO surveyors
9 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.


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 Tree Swallow, 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

Catalan: oreneta bicolor
Czech: vlaštovka stromová
Danish: Træsvale
Dutch: Boomzwaluw
Estonian: õõnepääsuke
Finnish: kelopääsky
French: Hirondelle bicolore
German: Sumpfschwalbe
Hungarian: odúfecske
Icelandic: Trjásvala
Italian: Rondine arboricola
Latvian: koku bezdeliga
Lithuanian: miškine amerikine kregžde
Norwegian: Tresvale
Polish: nadobniczka drzewna
Portuguese: andorinha-das-árvores
Slovak: lastovicka dvojfarebná
Slovenian: drevesna lastovka
Spanish: Golondrina bicolor
Swedish: trädsvala

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