Yes, Recessive Red or Recessive yellow will mask almost all colors. Your bird should be carrying spread because of the nice even rich Red he is colored. To be sure just mate him or her to a blue bar bird. This should give you a blue T check or even a check bird that is mostly black. If the squab comes out barred with a black overtown, Then your bird is a blue bar, spread, rec. Red. fantail. For the best spread ( Black ) bird, Use a T-check bird carrying spread Times 2, thus T-check, T-check, spread, spread. or homozygous for T-check, and homozygous spread. Makes for a really black pigeon. You could add other modifiers but this will be plenty black for most people.