Pale-legged Leaf Warbler

Phylloscopus tenellipes

The pale-legged leaf warbler is a species of Old World warbler in the family Phylloscopidae. The species was first described by Robert Swinhoe in 1860. It is found in Manchuria; it winters in Southeast Asia. Its natural habitat is temperate forests. Source

Where it is now

In the last 8 weeks this bird was recorded 8,987 times across 10 areas (each area is a 5 degree square).

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Movement and weather

Over the weeks it was present in the past year, its centre in Asia ranged from 18°N in January to 33°N in November, about 1,600 km apart.

Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.