A chicken. It's a very pretty chicken coop I love the cord-wood construction. If I were to build a chicken house like this I don't think I'd go round though, just not enough places to put perches, nesting boxes, feeders, and waters.
Here's another inspiring earthbag construction for fans of natural homes out there! The Shantikuthi Earthbag Spiral House is called such because its walls were built in a spiral pattern. Its roof also has a spiral garden where visitors can harvest seeds