Colorado Parks and Wildlife is making changes to how it decides whether or not to kill wolves that are continually attacking livestock after threats arise.. Colorado Parks and Wildlife announced on Wednesday, Sept. 30, that it will be taking a more conservative approach to deciding whether or not to kill wolves that are repeatedly attacking livestock — citing rising concerns over how potential disease, wolf pup survival, mortality rates and uncertainty around future releases could impact the nascent population of gray wolves. The management change comes after the state wildlife agency has killed five wolves this year — four between...