Stanwick Lakes is situated in the Nene Valley, which is one of the most important areas for overwintering waterfowl in the UK. Many species including Wigeon, Gadwall, Teal and Pintail can regularly be seen here. The site attracts keen birdwatchers with specialist equipment hoping to catch site of one of the rarer species, such as Redshank, Smew or Green Sand Piper.

Other kinds of wildlife such as butterflies, dragonflies and damselflies are regularly seen along with the occasional sighting of muntjac deer and otters.