Do Columbian Wyandotte's mature more slowly than other chicks?

[harmonyp]

Of my 17 chicks, my Barred Rock and Easter Egger are too, the fastest growers. My Barnevelder is the runt of the flock, and my Silver Laced Wyandottes the next smallest. But during weeks 5-6 they went through a growth spurt and caught up to the others.

In my flock the Wyandottes are also the most mischievous, pulling at the tail feathers of anyone roosting.

BTW OP - miss Roxy is beautiful!