How big should 5 week old Giant Blue Cochins be? Suppose to be Giant Blue cochin, not sure if they are bantam, not getting very tall. I just put them into the baby half of the coop with 11 week old, 4 RIR and 2 PBR. Plan to let them out in the run with supervision daily, when not working 12h shifts. hope to totally release them to the big girls in 2 weeks. They can see, but not touch. If they are bantams what size would they be now? Standard Giant Blues? I have a 2 wk. old Hamburg and a 1 wk.old Cuckoo maran that I want to transition to the baby side of the coop in 2-3 weeks. Is warm, humid and rainy this week, weather should be great for the transition, but I am not sure what size they should be now at 5 weeks.