Cool rendezvous! Thanks for sharing this story!
I did have to wonder if this bird has an issue with one of its feet - but I can't see the right foot enough to determine whether it was something wrong or just normal for this species... clearly not at home on the tiles though!

Oh, a low-stress way of capturing a bird - either a net (but most people don't have one of those around) or a towel tossed over them. I've had to use both in my own bird-keeping. (The towel was particularly useful when the bird could have bitten me quite badly!)