One of my earliest memories is of the Violet-green Swallows that used my dad's nestboxes, and I always wished that I could watch the actual nest-building process, and what they did with the chicken feathers I tossed up for them to catch on the wing. Of course, the indoors part was always hidden from view. But now, thanks to technology, I can satisfy my curiosity about that. This female was checking out one of my boxes today, and seemed to like the layout pretty well.