What gauge is the wire? It looks pretty tough, like dog kennel mesh - which is great, but a concern would be if your birds are flighty and get spooked (most Mandarins & Wood Ducks are), that strong mesh can be lethal. I've lost birds over the years when an owl or other predator spooks (even fireworks or thunder) them at night and they crash into something strong with no give. Just something to consider if getting full-flighted birds, wouldn't be an issue with pinioned birds or if you trim wings.
Ditto with Blob Chicken, a little concerned about the gaps seen in the first pic. They are cavity nesters and can squeeze into (through) some tight spots.
Best to try cover all bases before.
Dan