I just had the same problem i just moved my 5 week coturnix in there permanent pen outside. the first 2 nights every thing went great when i checked on them this morning all 3 white ones where completely torn to pieces i have 10 quail 2 males i know for sure which one was doing it as i watched him so i separated him and everything's fine now should i try to put them back together or should i cook him up. i plan on incubating eggs should i just separate them until i need fertile eggs? any helps appreciated.