How long should i keep my coturnix quail in the brooder?

They should be a week old right now so you have at least 4 weeks before kicking them to the outdoors

 

I keep my indoors for at least 4 weeks. They may not be in the brooders the whole time I have a couple small pens in my brooder barn that way they can adjust slowly. 2-3 weeks in brooder then 1-4 weeks in the indoor pen (depends on the time of year & weather) then to the great outdoors.