This species is about annual during spring migration in the Pribilofs with the most reliable time being from May 20th-June 5th and a peak around May 25th. They are occasionally seen later into June but only a handful of the many spring records are from after the 5th. Despite its regularity in the spring, this species is an exceedingly rare summer and fall vagrant to the Pribilofs with less than ten total records in those seasons including both early summer wanderers and fall migrants during early-mid August.
