Well, four went to one rapidly over the course of a week and a half. The smaller yellow one wandered off from Henrietta and it was a little off in the head I think, it acted funny. That happened three or four days after I got them. Then while I was on vacation last week, another one disappeared and never showed back up. Day before yesterday, after I had already interacted with them and made sure the last two were safely with mother hen, the third disappeared and has never been heard from again. Naturally I am wary of letting Henrietta out with the last one, as I don’t think she’s caring for them very well (she leaves them unattended quite a bit when treats are being given or when she’s eating), so she and Houdini (it escapes ALL THE TIME) are residing in the XL dog cage I have for brooding chicks. I’m going to look into getting mid size-adult ducks once Houdini gets a bit bigger for companionship since I know ducks are social creatures. I’ll post a pic of him/her shortly!