Each of the three monotypic groups is recognized as a species, based on differences in plumage and on morphometrics (Schodde and Mason 1999). The group Crested Shrike-tit (Eastern) Falcunculus frontatus frontatus becomes Eastern Shrike-tit Falcunculus frontatus; the group Crested Shrike-tit (Western) Falcunculus frontatus leucogaster becomes Western Shrike-tit Falcunculus leucogaster; and the group Crested Shrike-tit (Northern) Falcunculus frontatus whitei becomes Northern Shrike-tit Falcunculus whitei.
Reference:
Schodde, R., and I.J. Mason. 1999. The directory of Australian birds. Passerines. CSIRO Publishing, Canberra.
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.
