Within the project of protection of the white stork funded from Life resources, in order to compensate for the loss of nesting sites of sparrows and tree sparrows, we decided to mount 3 nesting boxes under every moved nest. Why this number? Well, a few years ago we conducted a study of the occupation of white stork nests by other bird species and it turned out that their main inhabitants are sparrows, tree sparrows and starlings. There were on average 3.5 pairs per one nest. At the end of March, we checked a few of these boxes. There were no storks on the nests yet, but all the boxes already had occupants! This confirms that it is a necessary and important part of protecting these small passerine birds. We intend to explore this phenomenon more thoroughly.
