Closure signage for Roundhouses

Are all the 1960s 'roundhouse relics' temporarily closed due to Covid? At least it's possible to see some of the species from a distance.

@snowleopard it appears to be from what I saw on my visit, I don’t think I passed by the lemurs or pudu roundhouses but every single one that I did pass by including the Snow Leopard and Komodo Dragon were closed with this signage. I was able to see the Stellars Sea Eagle and the Snow Leopard compared to other roundhouses.