No one asked what color the pigments are, they asked what color the feather is. This is really a silly thread because it's entirley a matter of symantics, which is outside the realm of the forum. Blue is blue. You could just as easily argue that the sky isn't really blue (it isn't) but you wouldn't convince many people of that. If it looks like a duck, and quacks like a duck, and walks like a duck, it's a duck. When you pick up a blue jay feather, sorry, it's blue - who cares why? Now a hummingbird feather on the other hand can appear different depending on the angle at which you look at it. A blue jay feather always looks exactly the same.
