European Greenfinch

Chloris chloris

The European greenfinch, or simply the greenfinch, is a small passerine bird in the finch family Fringillidae. Source

Where it is now

In the last 8 weeks this bird was recorded 1,050,156 times across 76 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 10°C (typically 4 to 15°C, from 30 areas). That range is wide, so temperature alone does not explain when it turns up.

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.