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Side-by-Side Comparison

Attribute	Alström's Warbler	Bianchi's Warbler
Scientific Name	Phylloscopus soror	Phylloscopus valentini
Order	Passeriformes	Passeriformes
Family	Phylloscopidae	Phylloscopidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	11.1 cm (4.4 in)	11.0 cm (4.3 in)
Weight	8.05 g (0.28 oz)	6.85 g (0.24 oz)
Diet	--	--
Clutch Size	--	--
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🌲 Forest

Alström's Warbler only

🏖️ Coastal

Bianchi's Warbler only

None

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Conservation Status

Least Concern

Alström's Warbler

Least Concern

Bianchi's Warbler

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About These Birds

Alström's Warbler

Alström's Warbler is a tiny leaf warbler weighing just 8 g with a short 11.1 cm wingspan, found in dense forest undergrowth. It gleans insects from foliage with quick, restless movements typical of its family Phylloscopidae.

Bianchi's Warbler

Bianchi's Warbler is a small leaf-warbler found in montane forests and shrubby hillsides in central and southwestern China. It has olive-green upperparts and a yellowish supercilium and underparts typical of leaf-warblers. It forages actively in the forest understorey and shrubs, gleaning insects from foliage.

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Arctic Warbler Phylloscopus borealis Ashy-throated Warbler Phylloscopus maculipennis Biak Leaf-warbler Phylloscopus misoriensis Black-capped Woodland-warbler Phylloscopus herberti All Phylloscopidae birds →

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