did you use duct tape to attach? COOL!!! will add one right now! I'll get the dimensions of where it needs to be.. BIG SIGH! Yes, here is the quote from sialis.. "Try a modified Noel guard: Suggestion from Bernie Daniel: When a Chickadee or bluebird is established (i.e., a nest or eggs) build a "vanity front porch" on the box for them. Cut an old 2 quart milk carton in half. Cut a 1.5' hole in the bottom. Trim back the sides to about 4" in depth (now you have created a 4" bowl with a hole the bottom.) Center the hole in the bottom of the former milk carton over the nestbox hole and tack it onto the door. You can cut the bottom of the "porch" off so it is easier to attach and so that the Chickadee has access to the wooden door -- but keep the sides and top in place. (Basically this is a just a plastic "Noel guard" with no bottom). This creates a vestibule that prevents the wren for seeing the chickadee fly into the hole. Thus, the wren has less interest in what the chickadee is doing. Daniel has never lost a nest to wrens since using this method. " on this page: http://www.sialis.org/wrens.htm about a third of the way down.

They shouldn't of had a problem with the guard if you had it up like an extended roof, do you have sides on the guard or just the front part? That being said I did one year have a pair of Blues not accept a guard. I couldn't watch but I put it up during egg laying and when there wasn't an egg laid the next day I took it off and she laid her egg in the afternoon instead. Figured I couldn't jepordize the eggs and left it off. Somehow we got through that nesting without the wren bothering them. They both wanted to box at first and I was freaking out! I say try again with it just up, if you see them go in (it may take a bit as they will be very wary of it) then put it down but maybe shorten it at first so it isn't as long as it should be, once they accept that then make it longer. If they won't accept it when you have it on but just up then maybe they won't accept it at all. Once she begins incubation though I wouldn't mess with it anymore as she needs to stay on those eggs. Good luck! Donna

DUH !! Sorry Lisa- I looked it up on the internet. Not too bad for a mentally challenged ex- PE teacher, huh? Seven years ago, I had to have an 8 yr old show me how to turn on a computer at the public library!!

Hey Anita, I thought that too until one day I watched my momma Bluebird go up under the wren guard on the Chickadee nestbox. She was getting a bug on the ground before that and must have seen the hole when she was on the ground. So while it may take a bird longer to find a nestbox with a wren guard I don't think it is fullproof to stop HOSP as they could easily find the hole too if on the ground or by observing another bird going in and out of the nestbox with a wren guard. Just my opinion really but that it how it seems anyway. Donna