The last couple days one of my bantams have been making a small little depression in the sand and seems to sit in there a few minutes. She is only about 13 weeks, so I was told when I got her. There are two others I got at the same time, and they aren't doing this. I'm just finishing up my nest box, so I will be installing that this weekend hopefully, so they get used to it. Is this just a practice thing, or maybe nothing at all? Or she could be older than I was told? I got her about 4 weeks ago and was told she was 9 weeks old.