On hot June evenings, listen to amazing concerts featuring aquatic warblers – inconspicuous little birds, which inhabit the Biebrza Marshes. The concerts gather quite an audience from many different parts of Europe.
On hot June evenings, listen to amazing concerts featuring aquatic warblers – inconspicuous little birds, which inhabit the Biebrza Marshes. The concerts gather quite an audience from many different parts of Europe.
On hot June evenings, listen to amazing concerts featuring aquatic warblers – inconspicuous little birds, which inhabit the Biebrza Marshes. The concerts gather quite an audience from many different parts of Europe.
