Boaz

Mine started at about five weeks and sounded broken for a fortnight. Then one morning it was a proper crow.

Six weeks old and a croak that comes and goes is a young male working up to his crow. The adult call is a short burst of harsh notes, their version of a rooster, and the early attempts come out gurgly and croaky before they settle into it.

You are about to have several of them doing it. Coturnix make a much wider range of noises than people expect: soft trills and purring while they forage, a repeated urgent call from anyone separated from the group, and a sharp alarm that makes the whole pen freeze.