I do have a question for aart. You mentioned that introducing chicks is much easier. Everything I read said that I have to keep the chicks separated from the flock until they are 20 weeks old and then introduce them. Is that not the case? From everything I read it sounded like you can't introduce chicks to an existing flock until they are the same size as the adult hens or the adult hens will kill them?
		
		
	 
The 'wait till they are the same size' thing was long a maxim for integration....but in the past couple years more folks have been integrating younger..
I integrated this years chicks at about 4 weeks old.
They went into the coop at 1 week with their heater, separated by a wooden and mesh temporary wall from the main flock.
They had their own feed, water, roost, and run in the 'coop partition' as I call it.
At 4 weeks I opened the three tiny doors in the wood part of the wall and 'taught' them how to go in and out.
At 6 weeks I took down the wall completely.
There were a few pecks of course, some of the bigs pestered the littles more than others, but overall it was much less dramatic than usual.
I think the chicks were less of a 'threat' than when I used to wait until the chicks were larger...and a smaller, faster target to hit, haha!
Now at 14 weeks old, they all get along pretty darn well, tho chicks definitely remain the 'subflock'. It was nice to get the integration over sooner rather than later and because I had way more chicks this year it was a very good move to integrate younger,
it's pretty crowded out there, but they are already used to each other.