The spring issue of the quarterly "Ptaki" of the OTOP (The Polish Society for the Protection of Birds, 1'23) published an article by Agnieszka Parapura, a doctoral student in the discipline of biological sciences, titled "The Valley of the Kostrzyń River". In it, the doctoral student tells about the Kostrzyń Valley located in eastern Mazovia - a place that is a refuge for many bird species and has received the status of a Natura 2000 area. She also describes the key species for the area, her interesting observations and also tourist attractions