Bay-breasted Warbler

Setophaga castanea (A Wilson, 1810) 17540
Family: Passeriformes > Parulidae

A colourful American warbler that breeds in the spruce forests of Canada and migrates to central America, an individual found in Cornwall in 1995 was most unexpected

Numbers of Bay-breasted Warblers on their North American breeding grounds fluctuate markedly in response to the abundance of their prey, the Spruce Budworm.


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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 Bay-breasted Warbler, 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.


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

Catalan: bosquerola castanya
Czech: lesnácek kaštanovoprsý
Danish: Brunbrystet Sanger
Dutch: Kastanjezanger
Estonian: ruskesäälik
Finnish: rusorintakerttuli
French: Paruline à poitrine baie
German: Braunkehl-Waldsänger
Hungarian: rozsdás lombjáró
Icelandic: Hnotskríkja
Italian: Dendroica pettocastano
Latvian: berkrušu kaukis
Lithuanian: rudakrutis kruminukas
Norwegian: Kastanjeparula
Polish: lasówka kasztanowata
Portuguese: mariquita-de-peito-baio
Slovak: horárik smrekový
Slovenian: kostanjevi gozdicar
Spanish: Reinita castaña
Swedish: brunbröstad skogssångare

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