Wingspan
270-310 mm
Body length
48-64 mm
Forearm length
40-47 mm
Weight
12-20,5 g
Maximum age
5 years
Migration
migrations up to 900km
Distinguishing marks
coat upper side blackbrown, bottom side whitegray
Favoured habitats
buildings
Occurence in local places
very rare , so far single findings
Photo: Dr. E. Grimmberger
