The surfbird (Aphriza virgata) is a small stocky wader in the family Scolopacidae. It is usually classified in a genus of its own. It was once considered to be allied to the turnstones, but more recent data suggests it is very close genetically to the red and great knots and should be included in Calidris. Indeed, the great knot looks very much like a larger, longer-billed, and somewhat darker surfbird.