It looks like there is also a Rocky mountain bighorn sheep (Ovis canadensis canadensis) living with the Rocky mountain goats (Oreamnos americanus), because the brownish looking animal in there does not look like a Rocky mountain goat
That is a very interesting mix of caprids, i would imagine that San Diego Zoo is probably the only zoo in the world that attempted mixing those particular species, also back in the 1970s the San Diego Zoo tried mixing a male Red goral (Naemorhedus baileyi) with a female Himalayan goral (Naemorhedus goral) and they did not get along well