Lately we've had a crazy, noisy mother mockingbird around our house. She must have a nest nearby and lets us know without a doubt when we get too close. She has particular issues with Kramer, our cat. A few days ago, I heard the most awful screeching bird noises. I went to the door and saw her perching beside our patio, giving a reclining, not-bothering-anyone Kramer a terrible fussing. Then she proceeded to dive bomb the cat. Kramer would take a few passes and get up and move to another spot. Not good enough. Mother mockingbird kept after it, even hitting the cat a couple of times. Finally Kramer had enough and got up and left. If Kramer was younger, that mockingbird would have been toast.
The photos aren't that great, but you get the gist.