These guys woke up about five or six days ago
>all in a one go, it seems
and took over my lot. There are literally thousands of them flying around in my woods, on my backyard, on my lawn and over the water at my pier. They are super active in eating smaller flying insects, including mosquitoes. I haven't seen them touching bumblebees or similar.
It's like having my own Army, Air Force, Marines and Navy aviators killing all blood sucking mosquitoes bothering me.

Seriously, this is a record amount of dragonflys at my region to date. There are also really big ones in the lot as well.