The tom inside the greenhouse is a bourbon red, the one outside is a blue slate. They're in full regalia here -- see the snood of the blue slate Tom? It's erectile tissue, and they extend it to make them seem even fiercer and more turkey-like. It's funny because they all do it, and it just changes their look, and you'd think that the other turkeys would figure it out, but that's a Toms life.
Turkeys are pretty silly.