A (probably juvenile) swallow, one of many feeding low over a cornfield yesterday. Very strong wind - at first I didn't think it would be worth trying (holding a big lens steady in a crosswind is pretty difficult), but the background was so lovely, I relented. They move so fast, you need a lot of patience, but also it was on the threshold of the focus limit, so I had to use full focus, which slows it down a fair bit. This one turned out okay though
500mm, f/4, 1/4000, ISO 320.
Current equipment: 5Ds, 5D mark III, 50D, 24-105L, MP-E, 70-200 f/2.8L II, 100L macro, 500L IS II; 1.4xIII + 2x III extenders; 600EX-RT.
Former equipment includes: 300D; EOS-M, EF-M 18-55, Samyang 14mm f/2.8, EF 35 f/2 IS, 70-200L f/4 non-IS, 85L II, Sigma 180 macro, 200L 2.8, 400L 5.6