Black-throated Blue Warbler

Setophaga caerulescens

Least Concern · IUCN Red List

LCLeast ConcernInvertebratesForestCup nestTiny · 10 g

What the Black-throated Blue Warbler sounds like

Sonogram of the Black-throated Blue Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Doug Hynes · Song · Port L'Hebert Migratory Bird Sanctuary, Nova Scotia, Canada · CC BY-SA 4.0 · via xeno-canto
Sonogram of the Black-throated Blue Warbler: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Tom Austin · Song · Clemson University/SCDNR--Cherry Farm, Pickens County, South Carolina, United States · CC BY-SA 4.0 · via xeno-canto

ID tip

The black-throated blue warbler measures 13 cm (5.1 in) in length and weighs 8.4–12.4 g (0.30–0.44 oz). Wingspan ranges from 7.5–7.9 in (19–20 cm). This is a strongly sexually dimorphic bird. The adult male has white underparts with a black throat, face and flanks. The upperparts are deep blue. The immature male is similar, but with greener upperparts. The female has olive-brown upperparts and light yellow underparts with darker wings and tail, gray crown and brown patches on the cheek. Both sexes have a thin pointed bill and small white wing patches which are not always visible.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Black-throated Blue Warbler

One bar for each month. Filled bars are the 6 months with records; pale bars are months with none. The wide bar is May, the month with the most records.

Where to see the Black-throated Blue Warbler

Regular rangeRare visitor

The map shades 29 countries with regular records, and 5 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.

Recorded as a rare visitor in Portugal, Iceland, Dominica, Ecuador, St. Barthélemy.

About the Black-throated Blue Warbler

The black-throated blue warbler is a small passerine bird of the New World warbler family. Its breeding ranges are located in the interior of deciduous and mixed coniferous forests in eastern North America. Over the cooler months, it migrates to islands in the Caribbean and Central America. It is very rarely found in western Europe, where it is considered to be a non-indigenous species. The black-throated blue warbler is sexually dimorphic; the adult male has a black face and cheeks, deep blue upperparts and white underparts, while the adult female is olive-brown above and light yellow below.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Black-throated Blue Warbler vs Blackburnian Warbler · Black-throated Blue Warbler vs Blackpoll Warbler · Black-throated Blue Warbler vs Yellow-throated Warbler

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