Barnacle Goose

Branta leucopsis

The barnacle goose is a species of goose that belongs to the genus Branta of black geese, which contains species with extensive black in the plumage, distinguishing them from the grey Anser species. Despite its superficial similarity to the brant goose, genetic analysis has shown its closest relative is the cackling goose. Source

Where it is now

In the last 8 weeks this bird was recorded 231,728 times across 40 areas (each area is a 5 degree square).

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Movement and weather

Each season it is first heard regularly where daytime highs are around 15°C (typically 11 to 18°C, from 13 areas).

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.