We bought a house that came with 6 chickens. My husband has raised chickens in the past and thinks I am making too much of a big deal about everything. We have a tiny coop with two nesting boxes. They chickens have a roost in the outside covered run space where they sleep at night. I live I. South Texas and it is very hot and humid here. The run is broken down and we are planning to replace it with a Wichita coop (or something very similar). My chickens free range when I am around but when I am at work they are in the pen. In June they were lying 4-5 eggs a day and now I am lucky if I get two from the same two chickens. I am thinking it could be the heat here. They are less than a year old. Any ideas? Secondly, I'd like to add some new chicks. If I buy them from the feed store how should I integrate them to group?