When I am shooting Dragonflies, sometimes I pick out an active dragonfly going after bugs. They constantly dart off to grab a bug, then return usually to the same grass or reed to eat their catch, giving you an opportunity to be focused on the area and get a action shot of the Dragonfly landing. Sometimes they might go to a different branch here or there, but overall about 7 out of 10 landings are on the same branch. Trying to track them as they are just flying is hard , especially to get them in focus and framed. This gives you a chance to get some good flight photos. Do not forget to use a high shutter speed, maybe with fill flash.