★★★★★ (0) European Breeding Bird Atlas 2 Par Verena Keller, Sergi Herrando, Martí Rodríguez-Franch, Marina Kipson, Pietro Milanesi, David Martí, Marc Anton, Alena Klvaňová, Mikhail V Kalyakin, Hans-Günther Bauer, Ruud PB Foppen
