Well, this was quite the day. I literally had no idea where the bunny was, so I just closed off my room for a while and put some greens in a container just to see if he was hungry. He never touched them. I left my room door open just to see if he would be located by the cat (no I did not leave them alone whenever the cat found the bunny I IMMEDIATELY went to get the cat away). Eventually I located where he was hiding, and at one point he actually came out and fell asleep. I simply walked up to him, put the container over his head, and slowly worked the lid under the container. After slowly turning the container upright, I was able to contact animal control and they delivered him to a nearby forested area. Thanks for all the help everyone ;) And just to set something straight my windowsill is halfway above the floor, so it would have been difficult to let the bunny back through it. But the windowsill is about 5 feet tall, too tall for me to get down or for him to get up.