Those are my replies to your other post. Both replies have
pictures, one is at the bottom of the page so you'll have to
A bird can be a pied even if it only has one feather of a
different color. A heavily pied green bird would be almost
completely yellow with possibly only 1 green feather, so you
can't really go off the picture for that because you might not be
able to see that one feather.
Opaline means that instead of the bird having a red face it's
entire head is red. If you'll go back and read my replies and
look at the pictures you'll be able to see the difference between
an American Cinnamon and an Australian Cinnamon.