@Great Argus
Even the aviary being extremely large (just around 1/4 of it's total structure is shown in this pic) the macaws sometimes fly over people's heads, but I think they are just following their regular flying routes, cause I couldn't notice actually agressive behaviours at all... maybe because they are already very used to the people...
@drill
Blue-and-yellow-macaw (Ara ararauna)
Red-and-green-macaw (Ara chloropterus)
Hyacinth macaw (Anodorhynchus hyacinthinus)
Scarlet macaw (Ara macao)
and also the hybrid macaw (Ara ararauna + Ara chloropterus)
There are also some species of waterfowl and other parrots living in this same vivarium. Such as brazilian teal (Amazonetta brasiliensis) and some small amazon species.
