Black-bellied Plover

Pluvialis squatarola

The grey plover or black-bellied plover is a large plover breeding in Arctic regions. It is a long-distance migrant, with a nearly worldwide coastal distribution when not breeding. Source

Where it is now

In the last 8 weeks this bird was recorded 55,277 times across 131 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 20°C (typically 16 to 27°C, from 20 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 North America ranged from 17°N in June to 47°N in August, about 3,300 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.