I'm beginning to think that a lot of bird species that used to migrate out for the winter are staying put now. We have had a flock of robins in our garden all winter long, and I believe I've seen bluebirds this past week...not sure if they were here all winter. I was surprised to learn that robins (and I assume other birds) can adapt their diets to whatever food is plentiful. Normally, robins eat bugs/worms, but in winter, they switch to a seed/grain based diet so can survive even when winter weather kills off bugs/worms.
I love your birdhouse and sculpture. And yes, my signif. other also moans and gripes everytime I ask him to do anything in the garden (he also tells me a great list of what will go wrong if I do thus-and-thus...).