25 November 2010 (says my log book). Approaching R21 at Cranfield I notice a flock of gulls settled in the touchdown area. No problem - if they don't shift I'll go around. They scattered so I continued. One bird decided to do a 180 and flew in front of me just as I flared. I heard and felt a thump, which seemed to come from the main gear. Landed, vacated the runway, reported the strike and shut down. The gull had impacted the right wing tip, as shown below. It did not survive.