it would be nice to have a second import to boost the flock size and perhaps enhance breeding and bloodlines
That’s a great idea. The zoo were looking at importing flamingo eggs a while back, not sure where they’re currently at with that. Edit: that was a document from 1999 (before the 2001 live import).
Some bloodlines are going to become quite dominant in the flock. Richard, Richard’s dad, sons of Richard etc. Cheviot has sired a few as well, with his offspring also breeding. As mentioned, the zoo bred chicks have been quite productive!