I have out chicken & her (former) eggs in a dog crate to keep the other chickens away from her, the eggs started hatching 2 days ago. This morning I found a dead chick, looks like he ran out between the bars of the dog kennel (he was hatched overnight so there could have been something wrong with him, I don't know) and was trampled. For now I've placed a cardboard box inside the kennel so hopefully the chicks can't get out (the other chickens/ducks are now out for the day anyway). How big should a nest box W chicks be? I've got to build 2 to 3 of them tonight... (hens all went broody...). I'd like to give the chicks as much room as possible with out it costing too much. ETA: Oh figured it out, going to line the inside of the dog crate with plywood (couple " high), but I'm still interested in other solutions, we want to build something more permanent later.