The first two aviaries are rather shorter than the others, and they were empty. The last two are a little longer and have wider standoffs, so I presume they hold the breeding pairs.
The notice says
'The Lear's Macaw is a beautiful member of the parrot family, named after painter and poet Edward Lear.
The species is sadly endangered mainly due to habitat loss and the illegal pet trade in its native Brazil. Indeed, the origin of the birds here is that they were smuggled into the UK in the 1980s. In February 2023 they urgently needed a new home.
Paradise Park, in collaboration with the World Parrot Trust (WPT), worked quickly to create new aviaries for the birds. The WPT, a charity founded at Paradise Park in 1989, is already actively involved in conservation work for Lear's in Brazil. Future plans for these magnificent may include reintroduction into their native habitat as part of a larger conservation project aimed at preserving the species.'