The Barn Swallow (Hirundo rustica) is a widespread and polytypic species comprising six to eight subspecies (see Vaurie 1959, Peters 1960, Cramp 1988, Brown and Brown 1999, Dickinson and Dekker 2001, Turner 2004, Dor et al. 2010, Dickinson and Christidis 2014). The New World subspecies (H. r. erythrogaster) breeds over parts of South America (Grande et al. 2015) and most of North America, north and west to Alaska (Brown and Brown 1999). In Alaska it is a fairly common or uncommon breeder, respectively, in southeastern and south-central Alaska, and a casual visitant elsewhere in the state (Gabrielson and Lincoln 1959, Kessel and Gibson 1978, Gibson and Kessel 1997, Gibson and Withrow 2015). Historically the species bred more widely in Alaska; however, sometime in the past century its range contracted substantially (Kessel and Gibson 1994, Gibson and Withrow 2015). Additionally, two Eurasian subspecies occur as visitants in Alaska. Both differ from erythrogaster in having whitish rather than rufous underparts (Phillips 1986): H. r. rustica, which breeds across Europe, the Middle East, and western Asia, and H. r. gutturalis, which breeds south and east of rustica from Amurland and Ussuriland in the Russian Far East south to northern China, Korea, and Japan (Turner 2004). There are no previous confirmed records of the Eurasian taxa breeding in North America. Here we review and update the status of the two Eurasian taxa in Alaska and document the successful breeding of a pair of H. r. gutturalis in western Alaska.