I'm not buying the whole dogs starving to death story. Had 32 sheep killed by a lab from the city. A border collie and a aussie did a pretty good number another time. Pair of skinny britanny spaniels were trying their darndest one night but they were behind the learning curve. They might starve over time in a wilderness area for not being able to compete with coyotes, but generally, they will display no fear of man and will seek out habitation and thereby food sources that they are adapted for. What looks like "the woods" to some people is actually somebody's yard. Never forget that dogs first and foremost are predators and if they are not bloodthirsty killers it is simply because they haven't had the right trigger.