Ok so I finally managed to convince the OH to let me buy a couple of backyard chickens. I bought a coop with attached run off eBay that said suitable for 3 large chickens but when arrived is clearly not the case. I was allowed to buy 2 pol chickens from a reputable supplier (I believe) both fully vaccinated and laying (5 days ago). My second mistake I think was allowing the kids to choose them as there is a bit of a size difference. They are both hybrids the first is similar to a RIR and for perspective laid three eggs in consecutive days bigger than any supermarket eggs I have seen. The first two were double yolks and the third is still in the refrigerator. No egg on day 4 or so far in day five. The second is a blue egg layer and laid a tiny egg (20mm) day one and what I would class as a small supermarket size egg on day two. Nothing since. The larger hen is clearly bullying the smaller and pecking at her. She won't let the smaller hen out of the coop into the run and the smaller one has no wish to either. My plan is to immediately build a suitable sized run around the coop which will be around 9 ftx4ft. My main questions are will the bullying stop when they have more space as they are way too confined at the moment or should I consider introducing another pair to even things out? I am presuming the lack of eggs yesterday and today is a settling in thing so not too worried at the moment about that. Please help.