That's a relatively recent (and pleasing) occurrence - I well remember peering through into the quarantine area at Cotswold on several visits in order to see what were for many years the UK's only Yellow Mongooses.
That's a tiny bit of an exaggeration, of course according to ZTL, there are 21 UK collections which hold Yellow Mongoose, whilst there are 96 UK collections which hold Meerkat. That said, I suspect the Dwarf Mongoose (at 16 UK collections) will soon overtake the Yellow, as this taxon seems to breed a lot more readily and profusely than it's larger cousin.
there are something like 30 ZAA collections with quolls, and I don't know how many non-ZAA collections (that would be harder to check and I can't be bothered searching tbrough all their websites....). Seems like quite a lot to me also.
One of the stars of my recent Nuremberg visit, giving an amazing soundtrack to the tropical/manatee house: http://www.zoochat.com/139/croaking-ground-dove-nuremberg-04-09-a-424769/ Listen here: XC257616 Croaking Ground Dove (Columbina cruziana) :: xeno-canto
I'm really rather jealous about this. Fantastic species that I am yet to see. (though your picture that makes me most jealous is the Cloven-feathered Dove at Walsrode!! http://www.zoochat.com/142/cloven-feathered-dove-walsrode-22-03-a-314687/)
And speaking of Weltvogelpark Walsrode, here a pictures of three of the many species not found in any other zoo (as far as I know): http://www.zoochat.com/142/sickle-billed-vanga-415803/ http://www.zoochat.com/142/cuckoo-roller-415808/ http://www.zoochat.com/142/dwarf-cassowary-415811/
*You're. If you're going to insult a moderator (which I do not suggest by the way), spelling and punctuation help make your case.