Intergrating 17 Chicks to a flock of 5

[Shell75]

I hatched 17 Chicks from my flocks eggs and need tips on how to intergrate them to my grown flock of (4) hens & (1) rooster. They are almost 3 months old and very close to the size of my hens. I'm sure 1 is a Roo he is crowing and suspect 3 others are as well but don't crow. They have been living in a separate coop with a fence between them for over month with no problems. Although now that 1 crows my Rooster is wondering about him. Any ideas on how to move forward?

 

[Broody_Mama]

Given that they have been able to see each other for a while and the young ones are big enough to fly away/evade attacks, you can try putting them all together now. That said, if you've never had more than one rooster together before, be prepared for problems. Chances are the boys are going to fight like crazy, and you really need at least 10 hens for each rooster.