We had never seen that particular line of Games crop up with a rumpless bird and I found it interesting how the genes can sometimes either spontaneously mutate or the gene just exists in the line until it pairs up with another eventually and shows up.
I was just curious. We had a Game pullet that ended up being rumpless this year and it made me think of it. We had never had a Game from that line come that way before her so its odd it just randomly pops up in a line.
Generally all of the offspring are bigger when you put a male with a bigger female. Females contribute a lot of the genes responsible for size in a breeding. I was always taught that males influence color more, and females influence type and size more.
I have seldom seen a rooster more determined than these Leghorn cockerels free ranging. They run the hens down. Even the very agile and fast Game hens. There is no old head honcho to keep them under control around anymore and they are running amuck!
@The Moonshiner here is a picture of one of the Silver males side by side to a Brown Leghorn pullet. There is about a months difference in age between them. The Silvers are 6 months, the Browns in this group are 7 months.
My Leghorns start crowing about 4-5 months old also, except for the Buffs who were around 6 months before they started crowing, as the line of Buffs I have are a slower maturing variety.