Until recently that sign has read the same for years but the pond that it represents has sat empty for years as well. The other side of this sign used to have labels for free roaming anoles, an Indigo bunting, and Baltimore oriole. In my hundreds of walk throughs, I never got a hint of any of them. What I believe was just a few weeks ago, the zoo finally updated the signs, now labelling a Grey Catbird, Downy Woodpecker, Red-winged Blackbird, and Rose-breasted Grosbeak.