In accord with AOS-NACC, Long-tailed Sabrewing is lumped into Wedge-tailed Sabrewing (Chesser et al. 2022), because of evidence of gene flow between them, and because their songs are similar and Wedge-tailed Sabrewing responds readily to songs of Long-tailed Sabrewing (González et al. 2011, Cruz-Yepez et al. 2020). Long-tailed now is recognized as a new monotypic group, Wedge-tailed Sabrewing (Long-tailed) Pampa curvipennis excellens
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.