Eurasian Curlew

Numenius arquata

The Eurasian curlew or common curlew is a very large wader in the family Scolopacidae. It is one of the most widespread of the curlews, breeding across temperate Europe and Asia. In Europe, this species is often referred to just as the "curlew", and in Scotland known as the "whaup" in Scots. Source

Where it is now

In the last 8 weeks this bird was recorded 325,772 times across 88 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 25°C (typically 9 to 29°C, from 18 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 September to 64°N in June, about 2,000 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.