Green Sandpiper

Tringa ochropus

The green sandpiper is a small wader (shorebird) of the Old World. Source

Where it is now

In the last 8 weeks this bird was recorded 197,219 times across 83 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 21°C (typically 8 to 26°C, from 23 areas). That range is wide, so temperature alone does not explain when it turns up.

Over the weeks it was present in the past year, its centre in Europe ranged from 46°N in August to 60°N in July, about 1,500 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.