Bird nest

People say that it's not for sparrows but sparrows near my house don't like small opening nests. I saw sparrows and a dove fighting over this and sparrows kicked the dove off their home. I've out holes for nails in the back and made 2 screws and a rectangular rod for birds to sit. I've did it in 3 plates so that no support is needed. I printed it with AMS but you can choose whatever, that's why I didn't color the model. If you like it, please boost, if you don't, kindly don't let me know.