Sooty Grouse

Dendragapus fuliginosus

The sooty grouse is a species of forest-dwelling grouse native to North America's Pacific Coast Ranges. It is closely related to the dusky grouse, and the two were previously considered a single species, the blue grouse. Source

Where it is now

In the last 8 weeks this bird was recorded 1,864 times across 7 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 North America ranged from 46°N in April to 56°N in February, about 1,100 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.