Macaws help South American trees

This 5 March 2020 video says about itself:

Macaws help plant trees across their habitats

Hyacinth and Lear’s macaws are two endangered parrot species in South America. These birds have strong beaks that allow them to crack through nuts. And a recent study found that the birds are able to help plant trees over hundreds of meters.

But researchers say there could be major ecological concerns if conservation efforts don’t preserve the two species.