Kamchatka Leaf Warbler

Phylloscopus examinandus

The Kamchatka leaf warbler is a species of leaf warbler. It was formerly included in the "Old World warbler" assemblage. It is closely related to the Arctic warbler and the Japanese leaf warbler, to which it was formerly considered conspecific. Source

Where it is now

In the last 8 weeks this bird was recorded 291 times across 4 areas (each area is a 5 degree square).

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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.