Guntín, Spain
North Western Switzerland. Photo by Felix Herzog
Asse, Belgium
Mértola, Portugal. Photo by Ana Tomás
Santarém, Portugal
Source: Claudia Consalvo (CNR – IBAF)
Source: Ian Knight (ABACUS)
Source: Bert Reubens
Source: Michael den Herder (EFI)
Source: Antia Villada and Rosa Mosquera
Source: Andrea Vityi and Balázs Kulcsár