I have 2 chicks and was wondering if I am able to put them outside? They would be in a chicken house inside our shed, I have a brooder but the shed does not have electricity so would the brooder be necessary? I live in the UK the temperature during the day is around 18 degrees and about 6 degrees at night? At the moment they are in the spare room with a brooder but was hoping to get them out of the house ASAP. Thanks.