It has been mentioned several times about what happens when dogs band together and the predator instinct kicks in. This story is a prime example. In addition to killing 29 chickens, a peafowl and a turkey, the pack managed to slaughter 30 goats. Pack of dogs attack, kill farm animals The pens were fairly well predator proofed with six foot chain link fences with barbed wire on top and bottom, but the dogs managed to dig under. You can never overkill when it comes to predator protection.