hi buzzy-lizzie, i think hawthorne would be a great idea, i should have thought of it myself, right by my house we had an overgrown site that used to be a convent it was full of hawthorn and many other bushes and trees, it was full of birds which would feed in my garden, they have recently ripped it all out to build 2 blocks of flats, so we have lost a lot of the birds, so planting things like hawthorn will hopefully encourage them back, so thanks for your idea