Blue tit
Flickr Full version: Canon 6D, Canon EF 100-400L ƒ4.5-5.6 IS USM, at 400mm, ISO250, 1/800, ƒ/6.3, Flash Yongnuo YN-560II at 105mm, 1/1 fired. The flash did give a nice sparkle in the eye and overall scene backlit, isolating the tit itself.