Hi everyone, looking to keep chickens this spring, and have questions about keeping them. First of all, I am starting small and looking to expand over time, so I'm thinking I want to start out with a small coop for 3-4 hens and a mobile/transportable run... Also live in the city, we don't have a lot of animals in town but predators I consider MAY be a problem are definitely Raccoons, Cats, Falcons and Snakes. What is my best defense against such?? Also I heard chikens don't need tons of insulation, is this true? Could I just build a coop from an old plastic dog house I have?? Thanks for your help! I look forward to everyones response!