I found a link to this site: https://www.backyardchickens.com/legchart/leg%20color%20chart.htm After studying it, I have a question: When you cross a homozygous yellow rooster with a homozygous yellow hen, why would the pullets have blue slate legs (and the roos yellow). It confuses me. Because if I were to breed a purebred RIR roo to a purebred RIR hen (both would have yellow legs), their chicks (both sexes) would have yellow legs. But according to this chart, I'd get pullets with blue slate legs, and roos with yellow legs. I was impressed with part of this chart because I have 15 BO x BR Sex-Link pullets, and I was trying to find out why they had yellow, willow green, blue slate, and white legs. Where'd the blue and green come from? But, according to the chart, it makes complete sense... The rooster (their father) was "not pure" for his white leg color (he IS a hatchery bird). But anyway, I'm hoping somebody knows.