The heraldic animal of the Park is the otter, which, due to the numerous lakes with a varied shoreline, good water quality and large fish populations, is relatively numerous (although no detailed quantitative data are available).
[1] In the valleys of the watercourses flowing through the Park, traces of the presence of beavers can be observed.
The American mink is an alien, invasive mammal species found in the Park and probably exerting a significant negative impact on the populations of water birds [4].
Apart from the mammal species typical for the forest ecosystems of Wielkopolska, elk is regularly observed in the Park.
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