Hello Melanie!
Welcome to Button Quail Planet. These birds are so much fun
especially when they are babies. I love watching their interactions
with each other and listening to the little noises that they make.
At three weeks old, you should be able to start telling the boys from
girls. There are a few colors that are hard to tell, and the whites
are nearly impossible until they start laying eggs or displaying
mating behavior. When you pick up the little ones, turn them over and
look for reddish or pinkish feathers around their vents. If they have
any red or pink on them, they are male. Females do not get red or
pink feathers.
My mom made one of the incubators that you made. I think they are
excellent and are much cheaper than buying an incubator.
Let us know how the little ones do! We love to hear stories!
Tina