Walsrode better get some Southerns because they’re the most common (At least in the US). Are there US zoos with Bennett’s?
They’re also the most common here, but getting ‘full sets’ of random taxa is hardly going to be top of Walsrode’s priorities, even though some may find it satisfying in a way. I don’t believe any US zoos have or have had (recently) Dwarf cassowaries but would love to be wrong.