How to take a picture of a dragon fly:
1 : Don’t run after the fly like a dog after his tail ( I did it for one two before understanding )
2 : Found the female in the tall grass ( Normally where you see a lot of movement from the dragon fly )
3 : Install your tripod and fix your lens at two feet over the grass
4 : Wait for the male, he should stay over the female and claim his territory and fight with the other male in this area.
5 : Good luck!