Can i keep older chicks with younger chicks?

[Jurassic Wolf]

2 of our 12 Easter eggers will be hatching. We expected more than this and will be ordering day old chicks from the same place. Unfortunately the website can not ship the chicks until July 7 (about). And we will receive them the 9th. The easter eggers will be hatching tomorrow. So, there will be an 11 day difference. Is it OK to keep them together?

 

[TheTwoRoos]

Yes,my chicks are all four weeks to two months.

 

[rita2paul]

yes mine also are a mix age, no problem.