That ain't no cat!

I've had a yard cat (stray or neighbor cat) spending more and more time in my backyard. So I put some food out for him about a week ago. I put it out before work, and when I came home it was gone. I continued putting it out everyday, and found when I was home that the food would disappear between 3-5 PM, but I could never confirm whether or not it was the cat eating it. Today I was running to the store, and I saw the cat run across my front yard toward the back fence, and realized I hadn't put food out for him yet. So I put food out first thing after I got back. About 15 minutes later, this is what I found when I looked outside. Zook finally snarled at him near the end, but it didn't even phase this guy...