A carcass of a male Pipistrellus nathusii ringed in Pape Natural Park on the Baltic coast (South Latvia) in August 2015 was recovered in Pitillas' Lagoon Natural Reserve (N Spain) in March 2017. At 2224 km in SSW direction, this is the first documented bat migration between these countries and the longest documented distance of a bat movement. 

Publication is available at https://www.degruyter.com/view/journals/mamm/ahead-of-print/article-10.1...