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Why now? The action followed months of attempts to reduce the number of livestock attacks, including diversionary feeding, use of drones and 24/7 field presence. Officials said the wolves “became habituated to cattle as a primary food source.” They said the attacks are a threat to livestock and wolf recovery.
What we know about the pack : The deaths were among the Beyem Seyo pack in Sierra Valley over the past month. One male and two female wolves were euthanized, along with a juvenile wolf that was mistakenly killed. The remains of two other young wolves also were found, but the cause of death is unknown. Juvenile gray wolf deaths due to natural causes are common.
More on the livestock deaths : The state department reported that between March 28 and Sept. 10, the pack was

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