The Striated Heron is a small heron with a short tuft of dark head feathers and is rarely seen in U.S. territory. The similar Green Heron (Butorides virescens) is widespread in the United States and usually has a rich chestnut neck, while the Striated Heron's neck is grayer.
A Green Heron usually has a rich chestnut neck and breast; a Striated Heron is grayer there. Their ranges are more useful than a distant photograph: Green Heron is widespread in the U.S.
Why they get mixed upBoth are small, dark, short-necked herons.