An example would be an east wind in September blowing Scandinavian migrants such as Bluethroats, Wrynecks, and the continental race of Robin onto the east coast of England and Scotland, leading to temporary concentrations of these species at headlands like Spurn.
The inland habitats of Finnmarksvidda are known for their rich bird life with species like Bluethroat preferring areas with scrub.
A Late Pliocene fossil from Rębielice Królewskie (Poland), of Piacenzian age (around 3 Ma), could be an ancestral Bluethroat.
39 mammal, 21 reptile and amphibian and 10 fish species inhabit the reserve, which is most famous for the 179 bird species that nest on its territory, some of which include the Dalmatian Pelican, the Mute Swan, the Greylag Goose, the Marsh Harrier, the Bluethroat, herons and cormorants.