https://phys.org/news/2018-05-human-coyote-interactions-year.html > That means people—especially pet owners—have to be vigilant in respecting coyote behaviour, she said. > Reported sightings of Edmonton's estimated 500 to 1,000 coyotes indicate they are healthy and on the prowl this spring, after feeding on deer and other prey weakened by the bitter winter, and surviving an outbreak of mange that has faded over the last few years.