Wow, to be honest, I can't say that I remember seeing Brown pelicans at the Dallas World Aquarium. How many do they have? How long have they had them? Where did they come from? and are they breeding them?
@UngulateNerd92 I remember there being about four on display in the last exhibit of Mundo Maya, across the Cenote from the Flamingos. This was the former Jabiru stork enclosure, I believe. They must have arrived sometime after the Jabiru storks left, but other than that I'm not sure, you'd have to ask someone more familiar with the place than me.