Hello maggiebee
I recently bought a wild bird feeder for £40 which allows robins and sparrows to enter, but keeps out pigeons, squirrels and cats.
Unfortunately, all the sparrows have disappeared and the two robins who used to visit hardly ever show up nowadays You are welcome to have this free of charge if you will pay the postage.
It is a green rustproof wire frame which folds flat and is lightweight and readily portable.
When erected it is about the size of a small dog kennel