I got a odd looking egg in my nest box today with my chicken eggs. I looked up guinea eggs online and, well, thats what it looks like to me. I will take a pic of it shortly to show you but have you ever known guineas to lay in nest boxes? I thought they made a nest in the grass somewhere to hide their eggs? One of my quineas was making the soft "chi chi chi" sound all day but I didnt pay much attn to it.