You could get almost anything from each hybrid chick, and each chick may be different. Mixing breeds isn't like mixing paint -- you don't get a consistent half from each parent as if you mixed yellow and blue liquids in a blender to get a green liquid. It's more like gently stirring different colored pastes with a stick for just a few minutes. There will be some areas of yellow, some areas of blue, and some areas where the pastes were well stirred and created green. If you put that layer of paste down, then take a cookie cutter and cut out little individual circles, those little cutouts represent the genetic combining of each chick. Some chicks will 100% take after their "yellow" parent, some after their "blue" parent, and most will have an irregular mix of yellow, blue, and green. So basically you get a totally unpredictable mix.