Thanks all!
We came up with the names Edith (Piaf - who was also called "bird" - little sparrow) and Oscar (Wilde, not sure what my wife was thinking there.

)
Edith already managed to get her wing stuck between the bars (how did she do that?), and later fell face first into the water bowl. It looked quite comical, but Oscar then duly cleaned/dried her head.
It's clear that compared to Ollie and Nadia - who were 4 months older - they are still quite clumsy. That doesn't surprise me, as - to my surprise - they are already the same size, so they must really be struggling to keep up with all that growing.
At first we thought they were quieter, but they quickly made up for that both in sound and running/flying around in the cage. Which is good, because we still tend to get worried when they don't make a sound for a couple of seconds...
Once again it amazes us how quickly they try to make contact with us - even though they have each other. They literally see *everything* that goes on around their cage, it's quite fascinating to observe.
They already allow us to pet their beaks and necks, accept food from us, and move to the side of the cage we stand. In a way, it feels like they are teaching us how and when to handle them. Fascinating critters.