Purple Finch

Haemorhous purpureus

The purple finch is a bird in the finch family, Fringillidae. It breeds in the northern United States, southern Canada, and the west coast of North America. Source

Where it is now

In the last 8 weeks this bird was recorded 16,264 times across 45 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 11°C (typically 6 to 15°C, from 36 areas).

Over the weeks it was present in the past year, its centre in North America ranged from 44°N in March to 52°N in May, about 900 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.