How do you tell the difference between White Leghorns and White Stars
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They are virtually the same. The hybrids will lay more eggs, designed for the egg laying industry. The main difference is the commercial hybrids will have a flopped over comb. Look of a Hyline layer. That's the pinnacle of white egg layers. Being a "star" I'd assume it's a sex link making obvious which will be layers at hatch. With that in mind there may be some leakage of other color. A Pearl White Leghorn is pure white.
She is not. It's a Columbian or Light such and such. By breed this color variety is called ether one. White legs and it's a Light Sussex, yellow legs and single comb Columbian Plymouth Rock, rose comb Columbian Wyandotte and pea comb with feathered feet is Light Brahma. There must be more...