After having a good first year with my chickens, last spring I built an "other poutry" run. It was 10' by 10', covered in welded wire. I used 2'x3's for the framing with 5' studs and a gabled roof. I covered the roof with welded wire and a tarp and then this Fall put another tarp across the north facing wall and half of the east and west walls - enough to protect the roost bar from a north east wind. The run can be pushed (with effort) for small distances and has blocks on four corners of the lower rail with slots cut out for a large lag bolt that can be fitted with wheels. I had planed to put turkys in there but wound up getting some Muscovies, a drake and a duck. At about a year old, one of my 7 hens died, the rest were molting, and egg productioon was way down. I decided to get a couple of juvenile hens, but the older hens would not let them eat. I was worried about them, and in desparation, threw them in the with ducks, who accepted them with very little problem. They even proteted the new hens when I let all the birds out to free range. I threw a 5 gallon bucket in the corner of the run which became a nest box. Later, one of the older hens looked very malnourished. She had been molting and the other hens would not let her eat. I threw her in with the other poultry and they are all getting along great. This was a much easier build than the coop/run combination my other hens have. We have had a relatively mild winter so far, but the chickens seem to doing fine - any concerns from folks about a northeast winter here in northern CT?