for the sake of agrument I assumed split since I figured that was the most likely canidate in this particular situation.....But still with a black phenotype he is going to produce more black birds with a black phenotype hen assuming that that hen is not a split and he is or if they both are just black then again more black birds will be the result. If he is bred to lavender birds assuming hes not a split then were going to get splits. and so on and so forth. I was just giving the answer that more likely than not breeding him to black or lavender birds the majority will be black that is the genetics at hand. We don't know for sure so all of this is pure conjecture for educational benefit. So any answer given to this OP will be purely speculation because the backround of the bird is not known. I assumed that he was a hatch mate of the mentioned lavenders but he could be from a BBS or a black pen. or he could be apart of the 50% split group. That is why I assumed he was a split because the majority of the black birds will most likely be split to lavender (25% lav, 50% split, 25% black)