do these chicks look old enough to go to the coop

[Sylvialarry]

My girls are 7 weeks old and we put them outside when they were 4 weeks old. Course I have a heat light in their run.
See how happy they are.

 

[truebluexf]

Does this mean mine are ok too? We are 70's day, 60 at night, they are no longer under heat in my garage bc it doesn't go under low 70's in there.