Hi there,
While doing some maintenance this morning, I accidently broke off an entire birdsnest colony at it's base (I was trying to free a snail that was stuck in it). Now, seeing as I've got a clone of this colony and I'd worry about wrecking more stuff by clumsily trying to stick it back on in there I've decided to just offer it for sale.
It's a baseball sized colony, tan with green polyps. If you check out my whole system for sale thread here:
http://www.canreef.com/vbulletin/showthread.php?t=56144
It's the one on the bottom left.
Really nice colony and does quite well with lower light. $40 gets it.