Birds
File:Black-throated blue warbler (Setophaga caerulescens) 2014.jpg

Black-throated Blue Warbler

Black-throated Blue Warbler

100
1 week ago
Not yet spotted on Fladder
Spotted
The Black-throated Blue Warbler is a striking warbler. Males are deep blue on the back, white below, with a prominent black throat, face, and flanks, and a distinctive white square wing patch. Females are olive-green with a white wing spot.
Where to spot
Breeds in mature deciduous and mixed forests of eastern North America. Winters in the Greater Antilles (Caribbean) and southern Florida.
How to spot
Look in mature forests with a dense shrub layer. Males are often seen in the lower to mid-story. Listen for its buzzy, rising "zwee-zwee-zwee-zweee" song. The white wing patch is diagnostic.
When to spot
Best observed during the breeding season (late spring to summer) in dense undergrowth. Also seen during spring (May) and fall (September-October) migration.
File:Black-throated blue warbler (Setophaga caerulescens) 2014.jpg
File:Black-throated blue warbler (Setophaga caerulescens) male.jpg
File:Setophaga caerulescens 280024014.jpg
File:Black-throated blue warbler (Setophaga caerulescens) 2014.jpg
Credits: Wikimedia Commons
File:Black-throated blue warbler (Setophaga caerulescens) male.jpg
Credits: Wikimedia Commons
File:Setophaga caerulescens 280024014.jpg
Credits: Wikimedia Commons
The male's prominent white wing patch, often referred to as a "handkerchief," is very conspicuous and serves as a key identification feature even in dim light within the dense forest understory.
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8210 (Seen in the last 3 months)
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