My broody only hatched one of 8 on Monday. Seems healthy and fine, and I'm sure it's OK to let her raise just one. (One egg broke in the nest around day 7, so I'm assuming contamination caused the others to not develop. One other did develop but died after hatching. I've cleaned the nest box and replaced the straw) I called my local Tractor Supply - they are getting chicks in Wed or Thurs , so if they are day-olds when shipped they should have hatched on Monday also, making them the same age as my One-sy. Gretchen is a devoted mom and I'm thinking that she would take them. Any downside to this plan?