Our birdhouse was empty all year. I guess too much traffic as we moved it to a different post on our deck. this time it was closer to the area we mostly frequent - our sitting area (table and 6 chairs). well, we didn't have the pleasure of watching the birds building a nest and later feeding the new borns, but instead it was occupied by a spider.
we cleaned the spiderweb off so many times but the spider was very determined and reworked it over and over.