Preparing for Birds

I used to put bird feeders out - but I've only built one birdhouse (and that - from a kit). I don't remember if any birds ever used it. 

But these bird houses in Brockville caught my eye.

They're obviously  made with loving care by a careful craftsperson...

I wonder if any birds have ever used them - or if they're garden ornaments... But they are whimsical and lovely!