Redhead ducks (Aythya americana) , that is!
Hundreds of them converged on the Sound behind our neighborhood this afternoon. Yesterday there were fifty or more, but today there were probably ten times that many.
Thanks to a neighbor, Maria Weisnicht, who called to give me a heads up, I was able to get a few shots. Wish I'd had a stronger telephoto lens with me.
Must be something very good down there. Click on the photo and you'll see more than half of them are head down in the water. Maybe they're just trying to warm up their tiny tushes in this cold weather! ;-)