First of all, welcome to ZooChat for new member @AZbat . Good to have a fellow resident of the great southwest. The exhibit at the time shown had llamas only. The guanaco was a fairly recent addition, when they were down to only one llama. They tried to introduce the new lone guanaco to the lone llama but it did not work so one stayed off exhibit at any given time. When I was at the zoo a couple weeks ago (first visit in months), this exhibit housed capybaras which had moved there from the neighboring capybara/screamer exhibit, which now only houses crested screamers. There was no guanaco or llama anywhere and no signs posted for them, so they are no longer on exhibit.