DaveH: Yep, squirrels will attack and drive off other rodents to secure a food source or nesting area. I have watched gray squirrels tassle with chipmunks, red squirrels and then watch black squirrels fight with the grays. All this serves to do is set up more squirrels for my crosshairs. I have to thin my squirrel population regularly or they start messing with everything. And, of course they bury their nuts and of course my dog digs tank traps in the back yard trying to find them. I can regularly find a dog dug hole 1.5 ft deep. Of course I will know which dog dug the hole, as his nose will be covered with dirt and his tail will be waggin' like sixty.
Ah yes, life with dogs and killer squirrels (lol). Mikey.