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.
Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ (Link)
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.