I had a wonderful time watching at least 6 Red Howler Monkeys in their enclosure that is high up in the air. I had to look almost straight up at an awkward angle but I ended up standing there for probably 10 minutes and it was the highlight of the visit. In 2010 the Red Howler Monkeys were off exhibit and I didn't see them and so today was an opportunity to glimpse the species and they hardly stopped moving the entire time I watched them.