@BongoHardwood, that is too bad. I really do think iconic species like pelicans should be part of the collection and exhibited in a representative habitat part. Associate them with like the aquatic habitat of the hippo.
Same is true of other bird families' like flamingoes, ibises, storks and cranes. Even aviaries showcasing some of the songbirds both exotic and resident would enrich countryside zoo with large open expanses and space for animal exhibits.