Just weighed some of my 5 week old birds. The A&M's are around 5.75 oz with some 6.5. The jumbo brown hen is 6.5. So maybe these will reach the normal 10 oz or bigger in 12 weeks or so. They will certainly not be HUGE jumbo birds as I was promised they would be.
Anyone with birds around the 5 week mark and have some weights?