Judy, you have heard about 'pecking order' . Well this came from chooks. We will introduce the new girls at night, this apparently helps. They will eventually sort them selves out. We would never introduce just one new chook as the other would all pick on it. We will also give them lots to keep them entertained. I hang up a cabbage for them to peck or the green part of a cauliflower. Some people put a swing in the chook yard. Haven't done this yet. Marina, we have had ISA Browns in the past but Ral wants to try a new local breed which are similar. Hy Line. They cost about $30 each, at point of lay. It would be cheaper to buy eggs but the fresh ones from our chooks are really so much better and we know what they get to eat. We also get lots of chook poo mixed with rice hulls which we put into the compost and on the garden.