Great Knots are casual in the Pribilofs in spring, with only three documented records. All three records come from the Salt Lagoon in late May. Typically in late May there are relatively few shorebirds using the Salt Lagoon flats, and a Great Knot would certainly attract attention if it was feeding with flocks of Rock Sandpipers. Great Knots are a full two inches larger than Rock Sandpipers, with a thick, all-black bill, rufous confined to he scapulars, black chevron-like markings along the flanks and a dark streaked nape and crown. One fall juvenile has been found in North America, at Saint Lawrence Island on August 22, 1997. Juveniles will share the structural features of adults, but could be confused with juvenile Red Knots that are nearly annual in fall on the Pribilofs. Look for the bolder black spotting across the somewhat buffy breast, black centered and white-fringed wing coverts and long black bill to separate it from the smaller, shorter-billed and less well-marked Red Knot.