I could really use some advice here. I have 2 hens that on Feb 23 started brooding together. On Feb 27 a 3rd hen joined in the nest box. The 3 of them are still on the nest. I have seen Raven get off only 2 days ago for food and water, and Goldie got off only yesterday for food and water. I went into the coop later on and they were all on the next. When do I start counting my day for hatching out. Can 3 hens in one box hatch out chicks and all 3 mother them together. I have never done this before and am worried. Also I live in Northern Alberta, Canada and don't heat my coop, except in very extreme cold spells, When can I remove the chick from their mothers? I have a spare homemade cage in our heated shop I can place the chicks. I don't have the space yet to go fully into raising chicks, plan on expanding this spring.