Difference in eggs between breeds

[cackle]

I have RIR and BR that are not yet laying but I am wondering when they do how/if I will be able to tell which egg is from which breed since they are both brown egg layers.

 

[beakkeeper]

I don't know about judging by color... but you could buy/rig a trap nest (a nest in which the hen is trapped until you let her out) and then only her eggs would be in there, so you could tell from that...