Another rare-but-regular Asian vagrant that can be found during the spring and fall, this species has proven to be most regular in recent years during the fall. Spring records are scattered from late May to mid-June with May 25th-June 5th likely the best overall time for this species, with a a single summer record pertaining to lingering individuals from the spring. While fall records have been found from early September to mid-October, they are concentrated in later September and early October with September 20th-October 5th being the best time to look for this species in the Pribilofs.