In winter plumage the head and neck are mostly off-white to grayish; the underparts are white; the wings and back have a pattern of broad black and white stripes when standing and more of a chevron pattern in flight.
In breeding plumage the head and neck of males is a beautiful cinnamon color with the remainder of the plumage being very close to the winter plumage pattern.

1st & 2nd photo: Breeding plumage. Galveston, Texas, USA, 8 April 2007
3rd & 4th photo: Winter plumage. Bolivar Peninsula, Texas, USA, 28 October 2006