I had a beautiful flock of three but yesterday my neighbor's dog killed 2 of them. We are beyond distraught & worried our remaining buff orpington will be lonely. She grew up from chicks with the other 2 (a Rhode Island Red and Barred Plymouth Rock ). Do I need to add chicks or can I add laying hens? Would like to get 2 of the same breeds but have heard RIR's can be mean to chickens they weren't raised with. I have a divided yard & a chicken tractor so I thought it would be best to place the 2 or 3 new ones in the tractor for a few weeks then supervise all of them at an introduction. I truly appreciate any advice because I've only had these chickens for a few weeks and am not an expert by any means!