The siamangs are still at the zoo as I saw them today, it’s just that every now and then the zoo’s male Patas Monkey will be put in their exhibit while the females are in the other one.
The species of Ray is most likely the spotted Eagle as well, I’ve asked about them during volunteer shifts and have been told that they were unable to obtain them before Galapagos was set to open, but that they are still in the plans and an adequate quarantine holding area for them is already finished. It’s just a matter of Houston being able to get any.
Additionally, the iguana at the reptile house is definitely another Grand Cayman Blue. Most likely a large male that can’t be housed with the smaller ones yet.
Finally, thanks to a conversation with a bird keeper, I can confirm that the flamingoes are planned to be moved into their new enclosure sometime around August 2024, so we could be seeing a fall to early winter of 2024 opening for that exhibit. The rest of what I was told about Birds of the World I’ll keep to myself for now, both out of respect to the confidentiality of the information and so you guys can experience it through a proper announcement from the zoo. But I promise you all it will exceed any and all expectations.