Silly season caiman ?

This one at Zürich railway station is not a living one, but currently the newspaper report about a caiman sighting in one of our lakes (Hallwilersee, https://www.srf.ch/news/regional/aargau-solothurn/exotisches-tier-fischer-sichtet-kaiman-im-hallwilersee). So far the appetite of the caiman concentrates on small animals and ducks. The lake hasn‘t been closed for the public and it‘s also clear that the caiman, nor the silly season (whatever will turn out to be correct) can survive the winter temperatures.