What is currently the rarest ungulate in a British Zoo and how many does that zoo have and are they breeding them
From memory, all the following are held at only one UK zoo:
(breeding status shown where I'm certain off the top of my head)
Natal Red Duiker (Chester - 1 female, still off show for now)
Blue Duiker (Colchester)
Mhorr Gazelle (Woburn)
Dama Gazelle (Marwell)
Saharan Dorcas Gazelle (Marwell)
Mountain Gazelle (Blackpool)
Sable Antelope (Marwell - breeding)
Lesser Kudu (Edinburgh)
Bharal (Highland)
(Central Chinese Goral - Edinburgh/Highland - effectively the same collection)
Tajik Urial (Highland)
Japanese Serow (Highland)
Gaur (Whipsnade - nonbreeding for the moment)
Siberian Musk Deer (Edinburgh)
Bawean Hog Deer (Edinburgh)
White-lipped Deer (Edinburgh - breeding)
Michie's Tufted Deer (Twycross - recently bred)
Timor Deer (Rusa) (Woburn - deer park)
Forest Reindeer (Highland)
Dromedary (Heythrop - the only confirmed pure animals in the country)
Bearded Pig (London - nonbreeding group)
Eastern Kiang (Highland)
I don't think I've missed any - Colchester's Rocky Mountain Goats have just gone, Moose are at Highland and Alladale and soon Whipsnade. All the other ungulate species in UK zoos are kept in at least two collections as far as I can tell.