GRAND JUNCTION, Colo. Colorado Parks and Wildlife has received up to four calls a day about bear sightings this summer.
Wildlife experts said bears are coming out of hibernation and are having difficulty finding their usual food because some of it was damaged in a late frost this spring.
Trash cans, pet food bird feeders and even BBQ grills can lure bears to people's property.
"When we associate bears and humans generally 9 times out of 10 it was because of a trash situation," said JT Romatzke, of Colorado Parks and Wildlife.
Romatzke said the black bears on the Western Slope aren't aggressive, however, Colorado Parks and Wildlife should be notified if anyone does see one.