No Biel chicks pics, but the autosexing breeds are all sexable the same way. Legbars can be a little tricky with some chicks hard to be certain of, but Biels are strongly autosexing, like Rhodebars and Welbars. The females below are on the left and the males have a large white headspot and far less distinct chipmunk markings. Basically, the cute chicks are the females (just like with peopleDennis, do you have pic of male and female Bieles so I can see what she hatched?

These are Rhodebars.
And these are Welbars.