They will need to be brooded seperately. Plan on moving the 3 week old B's to another holding aparatus to make room for the new chicks. Good luck and have fun!
Here's a pic of the 3 B's crib whilst it was being built. It sounds like you want to do something like this, a small hen house incorporated over the run. As you can see, the 'crib' is floating over the run, the food and waterer are now suspended so that they stay clean. Good luck and get...
Are "backyarders" a detestable sort of folk? And what does catering mean? A company wants to make money by selling products that they perceive a demand for??? Gosh, sounds American to me