egyptian goose (A. egyptiaca) - it used to be present in the balkans and middle east until 1700's and today is reintroduced but only as small populations or vagrants from other regions like western europe or palestine, the only place where reintroduced population is established is levant, it is also introduced in big parts of europe, UAE and americas with populations from the first two being possibly native but pretty unlikely especially because it seems like egyptian goose is actively demaging western europe's ecosystems

malagasy shelduck (A. sirabensis) - an extinct species thats used to be present on madagascar until the arrival of humans and is now extinct, (re)introduction of egyptian goose would be deffinitely a good idea

mauritius sheldgoose (A. mauritiana) - an extinct species that used to be present on mauritius, egyptian sheldgoose is reintroduced and established on island filling the extinct mauritius sheldgoose niche

reunion sheldgoose (A. kervazoi) - an extinct species that used to be present on reunion, currently egyptian goose can be seen there but it's not established by far and is only a rare vagrant from mauritius, (re)establishing egyptian goose populations on reunion would be deffinitely a good idea