I wasn't able to spend as much time as I'd like to in the greenhouse and I missed out on several of the free-roaming species, but these are the animals I saw and also saw signed:
Species I saw: Military macaw, Roseate spoonbill, Scarlet ibis, American white ibis, Madagascar crested ibis, Stirated heron, Black-headed grosbeak, Brazilian tanager, Red fody and Rodriguez flying fox.
Signed species: Sun conure, Blue-throated pinping-guan, Yellow-knobbed curassow, Black-necked stilt, Sunbittern, Black-spotted barbet, Chesnut-bellied seed-finch, Blue grosbeak, Lazuli bunting, Painted bunting, Rose-breasted grosbeak, Madagascar teal and Linnaeus two-toed sloth.