they are probably SA51 or SA51A hybrids.Hi Oz! U mentioned sasso is a hybrid production so its not purebred New Hampshire Reds? Because I could tell the difference between the male and female. Males usually have white off on the shoulder and grow slower than the females regard feathering the wings
The coloring on a New Hampshire is deeper red with no white. The hybrids wont breed true - their off spring wont give the same results as parents