Two adult swans have brought six cygnets into the Clark Lake world. John Deming, who has been observing them, believes that they are about a week old. They probably hatched on the south side close to the east end of the lake. According to John, the swan family has been making the rounds, swimming, he estimates, about five miles a day. One path they took was to swim across the lake, from the south side to the north and along the shoreline toward the County Park.
John notes that these are mute swans. The DNR considers them invasive species. They are territorial, can be aggressive and are known to chase off other winged species. Mute swans can also be a nuisance to humans, especially as lake traffic builds. Click here to read about the elimination of a mute swan at Clark Lake in 2015.