Taxon 15029: A newly described form of rayadito from the Diego Ramirez Islands, named the Subantarctic Rayadito Aphrastura subantarctica Rozzi et al., 2022, is larger but shorter-tailed than the mainland Aphrastura spinicauda, and nests in tunnels rather than tree holes (Rozzi et al. 2022). While tentatively considered by Clements et al. (2023) and Gill et al. (2023) to be a subspecies of Thorn-tailed Rayadito Aphrastura spinicauda, as Aphrastura spinicauda subantarctica based on its seemingly identical plumage, a lack of information on any vocal differences, and degree of genetic divergence, further study may bolster the case for species status for subantarctica.