Went to a garage sale today. I bought these shelves, that used to be in a, "Dollar General," store. Only $1. each for 4 ft long. The are 12" deep and have a 3" lip "U" on them. They are made of white welded wire, STURDY, you know the kind in all the stores. Would this work ok for nests? I know I would need to put straw or something for them to lay their eggs on. If not, I guess I could organize the garage, or my sewing room! (I bought tons of different styles! Flat ones, tall ones, some with dividers, etc . Guess I could open my own general store! ha) There has to be some way to use all of these great organizers! HELP!