I'm moving into a rented house. The owners currently live there, and they have two chickens that they keep in a building about the size of a small shed with a mesh front, with nest boxes inside. We're planning to 'foster' them when we move in (I suspect the alternative is for them to be eaten tbh). I've never kept chickens before, but am very keen to learn. Used to enthusiastically read country smallholder magazine, but all this has given me is a feeling that chickens are difficult and a terrible fear of red spider mite. What do I need to know before taking them on?