This pair of Mallards were flying a lot closer together than the last two I posted but since they were also a log closer to me and I was zoomed in they ended up on either side of the frame like the last two. These guys fly so fast that you have less than a second to swing with them, catch them in the window, get focused and hit the trigger so composition is really a matter of luck and lots of shots!
Sony a6500, FE200600G @ 600 mm (900 mm w/crop factor), ISO-250, f/6.3, 1/4000, hand held.