Australian Shepherds come in '4' colors
Blue Merle , Black Tri/Bi , Red Merle , Red Tri/Bi
there is a variation in the 'shades' of color and the amount of copper & white trim
I chose the following pictures to help show that difference
**note: "Tri" means the dog has trim colors of both 'copper & white'
"Bi" means the dog has only 1 trim color