Hungry birds

No, not an ipad app but the overnight snow has made the birds very hungry this morning. After I had refilled the feeders, this robin was straight back to feed on the suet and seed balls. The detail in his feathers is amazing so I tried to capture it. It's about 10% of the NEX frame area, and at full aperture through double glazing, so I'm pleased to have captured some of the detail (best viewed large)