All of the free-roaming waterfowl as well as the prairie dogs have this main lake as their central hangout space, these are the animals I was able to spot in my visit:
Black-tailed prairie dog (Cynomys ludovicianus), Caribbean flamingo (Phoenicopterus ruber), Mute swan (Cygnus olor), Black swan (Cygnus atratus), Barnacle goose (Branta leucopsis), Upland goose (Chloephaga picta), Ruddy-headed goose (Chloephaga rubidiceps) and Domestic muscovy duck (Cairina moschata domestica)
Other than that I also spotted the hybrid Barnacle x Emperor goose posted in the gallery and many mallards and invasive Egyptian geese.