That *is* a very nice aviary and it's great that your Nan is so supportive with the project.
But isn't it too cold to have the birds outside? Aren't they indoor birds? I'm no expert though, I've never had birds...
After I get younger plants from the nursery I have to acclimatize them in the garage before I can put them out this time of year (and some have to stay in the garage every winter, even though they're several years old). At least, that's how it works with rhododendrons, lol.
Rejoice ever more. 1 Thessalonians 5:16