when/how to introduce chicks? coturnix

["mulroys"]

I hatched out a batch of Texas A&M quail, and at tha age of five weeks, put 
them in the coop with their parents.

I came out later to find only two of them alive, (barely) and the rest torn 
to shreds.

The surviving chicks are now 8 weeks old, and I'd like to put them back in 
with their parents.