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Phylloscopus borealis
Basic stats
Diet
Insects
Habitat
Forest edge, gardens, mangroves during migration
Range
Breeds across northern Eurasia, winters to Southeast Asia
Clutch size
5–7 eggs (on breeding grounds)
Incubation period
About 13 days
Size
Small (11–12.5cm)
Wingspan
~19–21cm
Weight
~9–12g
A plain olive-green leaf warbler with a single faint wingbar and a long pale supercilium, a common winter visitor to Borneo from its vast northern breeding range.
Forages methodically through foliage at all levels for insects and is regularly encountered in gardens, forest edge and mangroves during the northern winter.
