Blue dragonfly on marsh reed wags head side to side, defocused back

dragonfly insect blue blue dasher marsh reed wag head head side to side defocused background twig closeup macro skimmer flight pachydiplax longipennis pachydiplax longipennis nature animal wildlife fly close up outdoor wetland wing plant perch narrow focus depth of field pond arthropod entomology bug invertebrate eye grass damselfly elegant wild anisoptera spot exoskeleton carnivorous predatory territorial