A research team from the University of Wyoming is studying the possibility of using chemical contraception to help control coyote populations. The group, led by zoology doctoral candidate Marjie MacGregor, has been experimenting with deslorelin, a hormone that makes coyotes sterile.
An Associated Press story on the research has more details:
“Coyotes tend to prey on larger animals, including domestic sheep, pronghorn antelope and mule deer, more heavily when they have pups, MacGregor said. Because coyotes quickly fill territory left empty when their counterparts are gunned down, contraception has potential to reduce depredation better than killing, she said.”
Wyoming Wildlife Service Director Rod Krischke agreed that contraception could help reduce depredation.
“Basically, if you reduce the reproduction capabilities then you have fewer mouths to feed,” Krischke told the AP. “The hope’s that the territorial coyotes would maintain their territory even though they’re not having pups.”