9 Week Old Chicks Fighting

[aart]

At what age can this start I have four week old chicks and I keep them inside at night and put them in thier coop during the day when it warms up. When in the coop they play fight rushing at each other is there a concern here. When inside at night they sleep together quietly.

They can start sparring at just a few days old.

 

[berettp]

Thanks it seems playful but I'm new to this so I wanted to make sure. It is very comical to watch

 

[aart]

Thanks it seems playful but I'm new to this so I wanted to make sure. It is very comical to watch

It is kind of 'playful', but also practice for real 'fighting'....and it's is amusing for sure.
There will always be some flaring, intimidation feints, and pecking in chicken society.