Bird box making and decorating proved to be popular
We have tried to put the different designs of boxes in places where we have already observed that species... It appears that different birds will only nest in boxes where the opening holes are of their particular chosen size. Who would have thought birds were so picky!
Hey how did that one get so high up in the cedar? It's for owls. It seems unlikely that owls would ever nest in a structure like that... but it's what it says in the books. The young owls, apparently, leave the nest before learning to fly. They spend quite a time crawling round in the foliage being fed by their parents and going back into the nest (big box), at night.
Here are the owl boxes during the construction process. And below here are the bat boxes in situ...