The photo does not show it, but the far right side has a mature tree (full of leaves) that the exhibit was built around. This is by far the best collection of South American animals in a single exhibit that I have seen.
two toed sloth
squirrel monkey
spiny tail iguana
green iguana
sun conure
patagonia conure
king vulture
mara
agouti
capybara
yellow headed amazon
inca tern
scarlet ibis
red footed tortoise
white face whistling duck
collies magpie jay
salvins pigeon