Nietoperze odłowione w sieci ornitologiczne w punkcie obrączkowania ptaków w Dolinie Środkowej Wisły

Data on bats captured in ornithological nets during the bird ringing project were collected at the station located on the Rembeza Island (51.97oN, 21.27oE) in the Vistula river valley close to Czersk village in 2013-2014 and 2019-2021. Bat species, their sex and age were determined based on photos made by ornithologists. In total, 32 individuals of six species were recorded. The most abundant were: Plecotus auritus (13) and Myotis daubentonii (9), i.e., species foraging close to vegetation or over the water surface, and flying on relatively low height. Species common in the area but flying higher Nyctalus noctula was captured rarely. Rare and valuable species – Myotis dasycneme – was also recorded, and the presence of an adult female suggests the occurrence of a breeding colony in the vicinity of the study site.