Thank you guys for the interesting information!
@imnvs You have given me an idea. I LOVED my early game when I was hatching chickens and then eventually dinosaurs. Eventually I sold off all my chickens and have only ducks and dinosaurs. But I realized that somewhere along the way, I must have disposed of all my brown eggs, thus not having one to ship. I think I will start hatching chickens until I get a brown one! I'm in no rush to get my shipping thing complete since some of the items have to come from Ginger Island, which I have barely started.