Monthly use of the S3 expressway underpasses by humans.

 
 
  Part of: Ważna A, Kaźmierczak A, Cichocki J, Bojarski J, Gabryś G (2020) Use of underpasses by animals on a fenced expressway in a suburban area in western Poland. Nature Conservation 39: 1-18. https://doi.org/10.3897/natureconservation.39.33967