This is a Migrant Hawker (Aeshna mixta) and I only know that because I have the Dragonflies of Bedfordshire open beside me! It is a common dragonfly in Bedfordshire and it breeds at lakes, ponds and rivers. This one was seen at Priory Country Park on the Finger Lakes.
Thanks for getting all 3 of my images on PP yesterday and for all your kind comments and Favs. It is always much appreciated.