We have received reports over the past few years of coyotes seen and heard howling at night in the area. People are concerned about the safety of their pets while outdoors in their yards, or in the park.
The WI-DNR has information about coyotes on its website, https://dnr.wi.gov/files/PDF/pubs/wm/wm0567.pdf and another good article was printed in the Jan./Feb. 2019 issue of All Animals from the Humane Society, https://www.humanesociety.org/news/misunderstood-coyote.
Milwaukee County has a program to monitor coyote sightings. If you observe a coyote, log on to report your sighting. This data-base helps track of populations of coyotes and helps monitor their behaviors. This is the link for Coyote Watch: https://www.inaturalist.org/projects/milwaukee-county-coyote-watch
The best advice is to keep your pets on a short leash at all times in the park, which is the park’s rule anyway. A coyote should be no more of a threat than someone else’s dog off leash attacking your dog off leash. And it bears repeating, only one (human) fatality has ever been recorded in the U.S.