“…Heritage language acquisition has been conceptualized as sharing features of both L1 (Kagan & Dillon 2008, p. 143;Valdés et al 2006) and L2 acquisition (Gass & Selinker, 2008, p. 23;Montrul, 2008). There is interest in exploring what existing knowledge on L1 and L2 acquisition has to contribute to understanding of HLLs (Montrul, 2008(Montrul, , 2009. Similarly, it has been proposed that more knowledge about HLLs may help refine existing theories within the field of SLA (Montrul, 2008, p. 500-501; see also Valdés, 2005, for a rather different take on why this may be the case).…”