Golden guests

I recently invested in an RSPB bird-feeder that takes what our local pet-shop calls "Niger seed", and once the goldfinches had discovered it hanging in the back garden, they have become regular visitors.
Tech. details: I took this with my Canon EOS 500D and its EFS 18-135 kit lens through a window, shutter 1/160, aperture f/5.6 (using CA); no time to set up a tripod and not possible to get closer, so the focus is not perfect!