Sorry to comment on something from a year ago, but I'm hoping to visit Zlin soon and wondered if those hyacinth and scarlet macaws are the only birds in this walkthrough? Don't think I've seen an aviary dedicated to Guyana before.
@olhl.animal.photography
During my visit few years back, this aviary contained - hyacinth, scarlet and military macaws, mealy amazons, southern screamers, black currasows and brazilian teals. But I guess there were changes since then.