I would like to breed my Black Australorps.. I have been trying to catch them when they lay eggs so I can learn who is laying what color eggs..... but they are all so fast or they refuse to lay while I am staring at them.. I have light brown eggs and brown eggs. I only want to incubate the BA fertilized eggs. Does anyone know how to tell the difference... The BA - BO - RIR - BR - SLW all look so similiar. Any experts out there?