Something that isn't too beat up or with really worn components that I can get some good use out of. Also I should mention that I have a total of $200 to spend.
My organization is only concerned if there is a chick in the tree that didn't tumble out and we would have to move it to the nesting box we install. Also if we move an existing but degrading nest into the box. Our conservation center tests and birds that come in so we know that those at least...
I do this at my job sometimes. It's a pretty cool thing to get to do. This year, though, we had to be fitted for n95 masks because of bird flu!
Stay safe.