How many did you see? Woburn did have a pair (Trio?) and I think they bred once (Maybe twice). I think AA has a female from Woburn which was bred their. AA also bred from their pair recently too.
At the time I took this they were mixed with Scimitar-horned Oryx; I don't remember noticing any conflict (but this is a drive-past exhibit, so sitting and watching for a long time doesn't really happen!).
