Hey from the UK! Welcome to BYC it's lovely to have you here lots of useful knowledge and advice on here and everyone trys to assist with any questions or queries.
XxSamXx
PS the heat... I was charmed by the idea of the Texas chicken air conditioner. Take a plastic water (or jug if you have room) and fill it to a half inch to top with water. Freeze it over night. Put several bottles or jugs in your pen, in the shade if possible, and the chickens will just sit nearby and enjoy the cool from the frozen bottles.