I've heard that raw steak makes dogs aggressive. I'd look in to that. Our dog is extreamly soft, he's a little westie and he killed a pigion in our garden. We couldn't believe it. It was soo out of charactor. He didn't eat it though. He won't eat anything that isn't cooked.
On a 3 hour walk in Wensleydale our choccie lab managed to find and scoff 4 dead rabbits and a dead mole, one of which actually had maggots wriggling in it. Was not very keen on wresting them off him, but we gave him a huge worming anf he was none the worse for it. He now regards them as a treat and positively looks for them when we're on a walk.
My dog would eat a whole pigeon if he got hold of one. He tried to eat a dead seagull once but I needed to get home so I had to walk down a road with my dog, looking as pleased as punch carrying a muddy, mangled, wings dangling dead seagull.