The bulk update request #11099 is pending approval.

create implication australasian_swamphen (6) -> purple_swamphen (1)
create alias pukeko (0) -> australasian_swamphen (6)
create implication african_swamphen (1) -> purple_swamphen (1)
create implication purple_swamphen (1) -> swamphen (4)
create implication swamphen (4) -> rail_(bird) (31)

Reason: Swamphens are a genus in the order of rails. Purple swamphen is a species complex within the genus of swamphens that includes the Australasian swamphen and the African swamphen. (Swamphen on Wikipedia) There are more species but I only included ones that had been tagged. Pukeko is a common name for the Australasian swamphen. (Australasian swamphen on Wikipedia)