I went back to World End Pond during lunch and had an adult male REDHEAD on the east side of the pond. It was alone, swimming swiftly north toward the marsh. I would guess it was behind vegetation where many Ring-necks were seen coming and going from, where it was swimming towards. The ducks were very active because of a Bald Eagle so who knows. Hopefully the incoming weather will keep it there for a little while.
This is my first for NH, Salem, and World End Pond.
If you go look for it, bring a scope and just be sure to drive slow on your way in on Theresa Ave. Lots of ducks to pick through.