Western Barbastelle

Barbastella barbastellus

The western barbastelle, also known as the barbastelle or barbastelle bat, is a European bat in the genus Barbastella. This species is found from Portugal to Azerbaijan and from Sweden to Canary Islands, where a sub-species was identified. It has a short nose, small eyes and wide ears. The conservation status of B. barbastellus is assessed as "near threatened", "vulnerable", "critically endangered" or "extinct" in various parts of its range. Source

Where it is now

In the last 8 weeks this bat was recorded 1,352 times across 16 areas (each area is a 5 degree square).

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Movement and weather

Over the weeks it was present in the past year, its centre in Europe ranged from 42°N in October to 53°N in August, about 1,100 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.