Add chicken

[Gary palmer]

I got 10 new chickens to add to my flock of 12. My flock is free range. Ive had new birds separate in a chicken run for 2 1/2 days. Can i let them out with other birds?

 

[Altfrizzle]

Most people would recommend keeping them separate for a month or so to avoid spreading any illness.

 

[Pork Pie]

Are they adult birds or chicks? I've included some integration links for both, below.

Adults to adults

http://www.backyardchickens.com/a/adding-to-your-flock
http://www.backyardchickens.com/a/introducing-new-chickens-using-the-see-but-don-t-touch-method
http://www.backyardchickens.com/t/1098683/introducing-new-chickens-to-old-flock#post_16895615


Intro chicks to adults

http://www.backyardchickens.com/t/1126547/topic-of-the-week-integrating-chicks-into-an-adult-flock
http://www.backyardchickens.com/t/1069595/introducing-chicks-to-adults#post_16276224

 

[Gary palmer]

They are 8 mths and new birds are 5 mths

 

[aart]

2 1/2 days is not enough, IMO.
I hope your coop and run is big enough for 22 birds.
The new ones may run away if your free range,
they need to be 'homed' to new coop/run/range area..

Integration Basics:
It's all about territory and resources(space/food/water).
Existing birds will almost always attack new ones to defend their resources.
Understanding chicken behaviors is essential to integrating new birds into your flock.

Confine new birds within sight but physically segregated from older/existing birds for several weeks, so they can see and get used to each other but not physically interact.

In adjacent runs, spread scratch grains along the dividing mesh, best if mesh is just big enough for birds to stick their head thru, so they get used to eating together.

The more space, the better. Birds will peck to establish dominance, the pecked bird needs space to get away. As long as there's no copious blood drawn and/or new bird is not trapped/pinned down and beaten unmercilessly, let them work it out. Every time you interfere or remove new birds, they'll have to start the pecking order thing all over again.

Multiple feed/water stations. Dominance issues are most often carried out over sustenance, more stations lessens the frequency of that issue.

Places for the new birds to hide 'out of line of sight'(but not a dead end trap) and/or up and away from any bully birds. Roosts, pallets or boards leaned up against walls or up on concrete blocks, old chairs tables, branches, logs, stumps out in the run can really help. Lots of diversion and places to 'hide' instead of bare wide open run.

This used to be a better search, new format has reduced it's efficacy, but still:
Read up on integration..... BYC advanced search>titles only>integration
This is good place to start reading, BUT some info is outdated IMO:
http://www.backyardchickens.com/a/adding-to-your-flock