Every now and then one will be still. When the mornings are cooler, I think they are less active, but I have yet to find out where they rest at night and early am. Once it heats up, they are erratic. I love damselflies because they are less active and don't fly very far when they do move. Just keep trying, and you will find a cooperative one! One thing I have found, is find a place where they like, and be still. I tend to let them come to me. I have caught some in flight. They are very curious when you get in their space. They will just go back and forth. That is when I try to get them in flight, but still a tough shot.