There are a couple sexlink threads I think, but I dont think there have been any acutually declared as a Sexlink Thread and there isnt one in the Breed Discussion sticky, so lets start this one and see if we can get it included in the sticky.
Edited by RAREROO - 11/13/10 at 11:19am
Here is a part that I copied and pasted from one of my previous posts to a thread of someone asking what sexlinks were. So it will also give a little info on what they are and how to make them incase someone else doesnt know
Here are some examples of my verisions of sexlinks that I bred.
Lets start with my Red Sexlinks. For this you have to breed a rooster that is pure for the gold genes ( Red, Buff, Partridge, ect...) with a hen with Silver genes( any hen with Silver in the name ( Silver laced Wyandotte, Silver penciled Rocks, ect.. Any Light Columbain colored hens ( Light Sussex, Columbian Wyandottes, or hens like Rhode Island Whites which are known to have the silver genes. This makes gold hens and roosters that are split for both gold and silver genes. The pullets are generally red and the cockerels are generally white, though it can vary depending on the cross.
For mine I chose to use a Speckled Sussex rooster on my RIWhite hens.
Chicks pullet on the left, roo on the right
OK now for Black Sexlinks. For this you have to have barred/cuckoo hens of any breed. With a rooster of any breed or color as long as he is NOT BARRED, NOT DOMINANT WHITE, and NOT RECESSIVE WHITE MASKING BARRING. All other colors/patterns will work. This makes none barred females and barred males.
For mine I used a Buff Orp roo on Barred rock hens and got
Edit to add.
Here is another Sexlink pullet that I have hatched. She is from a Buff Orp roo on a SLW hen.