An action capture showing the "dark side" of a Robin (Erithacus rubecula) guarding his patch against an influx of raiders the day before yesterday. I was focusing on the Robin, who was in attack mode, when the out-of-focus Blue Tit flashed past. Robins are very confrontational in this cold weather, guarding their areas very aggressively.
Taken 5.9m from subject, tripod. Please click on image to view on black.