My son has recently began his 4H Chick Chain project where at week 20, he is to bring 3 of the best looking hens from one breed he has been raising. He has to take each one and walk around a pen area "showing it off" for auction of potential chicken buyers. This requires a gentle hen. Here are the breeds we were given/chosen: Black Australorps, Buff Orpingtons, Ameracaunas, NHReds, and Barred Rocks. In your opinion, which of these breeds are known to be the friendliest/social birds that would work well if we spent a lot more time with them getting them ready for show? Thanks!!