I think a Central American pack could work well for Spring, with some Caribbean or Meso-American scenery. Perhaps it could cover some of the following species:
- Northern Tamandua
- Geoffroy's Spider Monkey
- Brown Pelican
- Central American Agouti
- Caribbean Flamingo
- West-Indian Manatee
- Rhinoceros Iguana (E)
- Hummingbirds (WE)
It could also be expanded to Latin America, but I think that would suit better for an Animal Pack (including the Ocelot, South American Coati, White-Faced Saki).
If we're back with regional packs, why not consider another Africa pack for Summer, for instance one focussing on the East of the continent, which has quite some unique fauna:
- Gelada
- Gerenuk
- Shoebill
- Mantled Guereza
- Greater Kudu
- Kirk's Dik-Dik
- Rock Hyrax
- Naked Mole-Rat (E)
I know it's antelope-heavy, but all three species are quite iconic and besides it features two monkeys, a bird and our first hyrax. It could even include some more widespread animals like the Honey Badger, Marabou Stork, Great White Pelican or Serval.