Lucy Goosie, that is!
One of our White Embden females has gone broody in the last week, so we began collecting goose eggs from the other females which were still laying. She'd made a nest in a secure location, and was hissy as all get-out about keeping people away from it, so we were confident about giving her some eggs to hatch.
Here she is, under the barn steps, defending to the death the eight eggs we've given her.
Don't ask me how I found out.