common Common crane, Grus grus, in Biebrza national park, Poland Common crane, Grus grus, in Biebrza national park, Poland Common crane, Grus grus, in Biebrza national park, Poland Juvenile Common Tern, Sterna hirundo, on Lake Skadar in Montenegro. Common crane, Grus grus, in Biebrza national park, Poland Common crane, Grus grus, in Biebrza national park, Poland
