They are indeed. Did look for a keeper to ask what was happening with regards to giving them a taste of the green stuff, but didn't find one (they'd been in the off show housing earlier in the day and we only spotted them when heading back towards the main entrance at closing time)
I had hoped to get a photo of them in the paddock when I visited recently, but unfortunately they chose to stay on the hardstanding instead that day (the gate to the paddock was wide open).
Not detracting from this photo, but these Wildebeest are (or were when confined to a hardstanding) very easy to photo like this. I took a very similar one and have seen lots of others almost identical- he/they do strike this pose very frequently.