concept -

DOO
gray chickens belong to "life of the surplus". it has many males and small female.
existence which produces nothing and just waits to return to still life.

QUU
a male gold bird belong to "the eternal life".
That's a hope of DOO, but there are no relations. That's stiff, beautiful and similar to still life.
it makes gold egg, but doesn't hatch out from gold egg.

XXX
female red birds symbol which is also the existence which lays egg and a fight of life.
http://www.furaffinity.net/view/18408687/