How accurate is the chicken calculator? I just started a flock about 1 year ago and I have several breeds and colors. I tried a combination of two different colored birds but the same breed on the calculator that produced a 25% chance of getting the color that I want in a roo, however I figured if I just switch the sexes on the cross I would get the same results for a pullet but I did not. I tried many variations but I could not get the same color for a pullet not even close, any suggestions. I am a beginner and don't have any clue about genetics but I plan on buying some books so if anyone has a suggestion please let me know, thanks.