Normally I only see one spotted sandpiper at a time. So it was unusual to see two of them interacting on the spillway. They were a good ways out there so had to crop this. They appear to be chatting. No fighting or mating took place. They faced each other and vocalized. I was too far away to hear. They would stop and preen awhile, shake their feathers out and talk some more. Still at it as I left.
Spotted Sandpiper (Actitis macularius)