This is a White Ibis. Common in the deep south and stay all year. We do have them in New England, but not many or for very long.
This is probably as close as I have ever come to them, found one walking along the side of a trail. What struck me was how blue their eyes are. Click the above image to see for yourself.
The other thing I did not know was how noisy they are. It’s like they are arguing with each other (they travel in small flocks). Strange birds with strange habits.