Hey Kathy,
Sorry to hear you ran into that same bedrock problem I have, but then again, I guess it's pretty common here in southern MO. Good luck on your new pond - post pics as the banks green up and you catch your martins enjoying their new playground.
After handigging all my holes thru bedrock....well, thus the name of my colony location. My wife named our first season's successful pairs after the Bedrock/Flinstone characters. Fred's a stud - started my colony and mated 2 females!
I checked the other colony locations here in town and nothing doing yet (that I could see), except that S&S are already setting up shop in some of them. I don't think anybody else puts forth ANY predator controls, so, as I continue to grow my location and change out housing, I'll probably offer my old stuff to the city park, plus some baffles. Last year I posted a picture of a martin that visited my site early in the season who looked like he'd narrowly escaped a Starling attack, but he didn't look very good at all, so I don't know that he made it.

I'd bet he was kicked out of his less than ideal housing somewhere else in town.
My yard-pet Mockingbird was cracking me up yesterday morning....he was mocking my dawnsong and daytime chatter, flying back and forth in front of my CD player, trying to find the birds in the box!
