I have a Columbian Wyandotte trio that I got as chicks from a store that sourced them from Hoover's hatchery. The cockerel feathered in more slowly than the 2 pullets. I have now hatched 3 of their offspring who are about a week old. Two of the chicks are growing feathers in like the other chicks, and one is feathering in slowly. Slow feathering cockerel likely?