Yes - a rooster will run to a pen or yard of new hens! He sees the ladies and wants to cover them!I do have one other rooster that I could substitute with. However, he is a part of the egg flock which is right next to the meat flock pen. I thought about using him, but am afraid that it won't work because he'll be focused on getting back the egg flock instead of settling in with the meat hens. Is it possible to switch roosters that easily?
You could cull the Ranger screamer, but then you would have Marans-Ranger crosses from the Marans rooster.
That’s not necessarily a bad thing.
There are a few farms in the Pacific Northwest US and also in Canada who have produced what they call Le Grand, which is a super-souped-up Marans that breeds true but also has great meat qualities. They are as expensive as Lamborghinis right now, but with a base of Marans, you could be a few generations away.
https://www.springcreekheritagefarms.com/le-grand.html