And this is not to say, that you are not right in your statement of zoos do not invest like they maybe should in birds, but like all things done many years back WOB was at the time (based on what i have read) a jewel, and they invested a great amount of money for those times, can it be done better today? sure, and with the excessive amount of imagination that i have i can probably come up with a massive design in a week's time, but like you said, zoos will just not put all this money into a bird exhibit, a shame if you ask me, imagine what a state of the art, zoo birdhouse, with a world class collection could look like, where you could find, penguins in Antartica, rainforest replicated in details, deserts, tropical island settings for rare endangered birds, a large circular center exhibit, replicating the andes, where condors could soar, this and so much more could be done in the right zoo, but it would probably cost over 100 million dollars (what i see in my mind) and no zoo would take that chance, but maybe i'm wrong, i hope i'm.