Can you post some pictures? Male meat birds as in Cornish cross, should have died by now... it might be a ranger cross, or more of a dual purpose breed.
As long as things are getting along, you can leave them be. But once they start not getting along you need to do something ASAP. You need that plan B set up and ready to go.
I do this hobby myself, so I have tried to cobble things together, and really that doesn't work too good. Without wood - do you have a barrel or a doghouse? A lot of people keep tethered roosters in front of a barrel with an opening cut out, and a stick inside as a roost. A dog house with a kennel will work too. Ideally, it would be best to be out of sight of the hens, but maybe it would work without that.
How attached are you? I think the easiest thing to do, would be let these boys go. Raise up your pullets and chicks, and get a year old rooster locally in about 3-4 months. Ideally one raised in a multi-generational flock, with the same type of predators that you have. These type of roosters tend to be more aware and have had flock training. It is easy to get roosters, often times with an established multi-generational flock, raise up some boys each year as a spare. One that is such a good rooster, that the owner (who would have culled him if he wan't) is the rooster you should add.
Just being a rooster, does not make for a good rooster. A flock master is largely the luck of the draw but being raised in an proper chicken society can really help, and a lot of roosters never turn out good no matter how they are raised.
Mrs K
