Willow Ptarmigan

Lagopus lagopus

The willow ptarmigan is a bird in the grouse tribe Tetraonini of the pheasant family Phasianidae. It is also known as the willow grouse. The willow ptarmigan breeds in birch and other forests and moorlands in northern Europe, the tundra of Scandinavia, Siberia, Alaska, and Canada, in particular in the provinces of Newfoundland and Labrador and Quebec. It is the state bird of Alaska. Source

Where it is now

In the last 8 weeks this bird was recorded 912 times across 18 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.