We have two hens, each with chicks, in puppy cages in the garage. Hen 1 has one chick and hen 2 and two chicks. These hens and chicks are in puppy playpens that are right next to each other. They all see each other, smell each other and hear each other all day and all night.
This weekend, we took both moms and all 3 babies into the main coop yard for some outdoor time. We have a large puppy playpen that's hard-sided and about 12' in diameter circle. I expected to have a little trouble at first when we started the playtime. Initially, I had apprehension about chick & mama playtime in the main coop yard is the chicks squeezing through the cracks and the big hens pecking at them. I was prepared that there would be a little pecking at first.
That turned out to be a very bad idea.
The moms each got big-hair feathers and stood on their tiptoes and started trying to rip each other's combs off. Feather's were flying, combs and wattles were bleeding, the chicks were cheeping and running around the perimeter.
It didn't seem to matter that all day long, for the past five weeks, these two hens have had only a piece of screen separating them. It was like they had seen each other for the first time--and didn't like it.
Anyway, I separated the hens with chicks, and all hens and chicks had a nice afternoon. Hen 1 and her one chick stayed inside the circle, hen 2 and her two chicks stayed outside the circle. I sat in a lawn chair in the coop yard, keeping the peace. I've had several learn-the-hard-way experiences with chickens and this was one of them.
I'm pretty sure I'm going to have a breeding pair of Araucanas to sell. They're only 3 weeks old, but one has substantial legs and another has substantial comb buds and one has neither of those. Surely, out of those, there will be a male and a female. If you're interested in a breeding pair of Aracaunas, be thinking about these little guys.