Male snowy in flight

Male snowy owls are harder to capture than females because they fly much faster, and mature males are almost pure white. With a light sky or a white snowy background, the autofocus mechanism is challenged to track the birds in flight. I used all my focus points and AI servo for the AF settings, and of course I'm shooting at the fastest frame rate on the Canon 1Dx Mark II, which is 14 fps. I composited the owl with a background so I could have the best of both worlds -- an environmental portrait where both foreground and background are sharp. I selected the snowy owl from its original sky background with the pen tool in Photoshop for the most precise accuracy, and the settings for the shot were 1/3200, f/11, and auto ISO which ended up being 1600. I used a 100-400mm lens with a 1.4x teleconverter.