EN
This article analyses information gathered between 1984 and 1995 relating to the seasonal movements of Miniopterus schreibersii (Kuhl, 1819) in the north-east of Spain. The recapture rate of banded different individuals is 32.5% and the total recapture rate is 53.4%. Ninety five different trajectories have been reported. The bats cover an average distance of 120 km between their hibernation sites and summer roosts. The longest longevity recorded here is almost 10 years. Localities where M. schreibersii was observed were grouped by seasonal use pattern and according the species biological cycle. Two new hibernation sites, seven new breeding sites and sixteen new equinoctial sites have been discovered in this study. From the verified flight trajectories, the distribution of shelters and the ethological characteristics of the species, the most probable migration path have been established.