CZY KORMORANY PUSTOSZĄ NASZE RZEKI? czy mamy problem z PLAGĄ KORMORANÓW? / odc. 245

This time, we'll tackle a hot topic: the growing cormorant population. The frosts have arrived, stillwaters have frozen, and cormorants have appeared, for example, on small trout rivers where they weren't present before. Do they pose a threat to our waters? I asked environmental biologist Dr. Paweł Oglęcki for a comment. Watch the video.