I would also love more information on the subject of introducing chickies to an established flock....I recently (2 months ago) added two leghorn pullets to my flock of 6 two year old ladies who started off together as "the original" grouping, and after some careful navigating, was able to be comfortable with the hierarchy the girls finally created. Dee & Dum (appropriately named after "Tweedle Dee and Tweedle Dumb") have settled in nicely, and it is hilarious to watch our older Japanese Bantam boss them around! However, we just added two new bantams- a silkie (Sookie) and a frizzle (Diamond. Can you guess which one my 5 year old named?)- and I am nervous about letting them integrate, being that they are still rather small and definitely have a different...fluffier...? (does appearance matter to chickens?!) look. However, to address your question (I was getting there, lol) it seems that when there are two or more, they can settle in better than flying solo- strength in numbers, perhaps!