I got rid of my Silkie roosters almost a month ago but Im still getting fertile eggs. The fertile eggs are either the Silkie roosters or from this black Sumatra. I was pretty sure that this Sumatra was a female but now Im not sure. I have heard that Sumatras can be late to develop and they don't how much of a comb or wattles. I need some help from someone who is familiar with Sumatras. Also, this Sumatra is 5 months old.