Where oh where has our Rabbit gone?

It happened again, Rabbit escaped the outdoor pen. He has a two story rabbit hutch outside with a little fence around it and somehow he managed to push the fence open and run away. Last time he did this it was because Colin had pulled a stake out to use as a sword and the fence was not secure. This time (I always check all the stakes now before leaving the rabbit in there) the stakes were all in and I have no idea how Super Bunny managed to push it open enough to squeeze through. But he did. And he is no where to be found (gulp). We hunted all over the yard, left food out over night...nothing. Colin wasn't too worried about it yesterday because his buddy Christian was here playing when we discovered he was loose and went hunting. This morning Colin was asking where Rabbit was though. I had to explain Rabbit ran away and we don't know where he is. Colin said he was in the yard and wanted his shoes on so he could go out and get him. Sigh, sad life lesson for the kiddo. I had hoped Rabbit would turn up, but I'm thinking he's gone. Poor bunny.