Flying things that aren't birds

I didn't realize there were so many different types of dragonflies. Wikipedia lists over 20 different ones in the Northern Hemisphere but I also read online that there over 150 in the United States. Right now the parks are full of dragonflies and butterflies. My backyard is as well. It's easier to get pictures of dragonflies than butterflies. Butterflies do not seem to sit still very long. Dragonflies tend to land on a twig and sit there for a minute or two. Since there seems to be a lack of different birds to take pictures of right now, the challenge is to get pictures of other flying things. I'm not going to even attempt to identify the above. I'd rather be outside than studying these guys online.