White-browed Shortwing Brachypteryx montana is split into no fewer than five species, based on deep genetic divergence between populations (Kyriazis et al. 2018, Shakya et al. 2020) and genetic evidence that White-browed Shortwing is paraphyletic with respect to Lesser Shortwing Brachypteryx leucophris (Shakya et al. 2020), coupled with differences in plumage (especially in female plumage) and in song (Eaton et al. 2016, del Hoyo and Collar 2016). Therefore we recognize the following species: the polytypic group White-browed Shortwing (Philippine) Brachypteryx montana [poliogyna Group], with subspecies poliogyna, andersoni, mindorensis, brunneiceps, mindanensis, and sillimani becomes Philippine Shortwing Brachypteryx poliogyna; the monotypic group White-browed Shortwing (Bornean) Brachypteryx montana erythrogyna becomes Bornean Shortwing Brachypteryx erythrogyna; the monotypic group White-browed Shortwing (Sumatran) Brachypteryx montana saturata becomes Sumatran Shortwing Brachypteryx saturata; the monotypic group White-browed Shortwing (Javan) Brachypteryx montana montana becomes Javan Shortwing Brachypteryx montana; and the monotypic group White-browed Shortwing (Flores) Brachypteryx montana floris becomes Flores Shortwing Brachypteryx floris.
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.
