Funny thing is - if the hens were purebred, we could guess. Doesn't matter what the chick is inside, the eggs will be whatever color that hen normally lays.
Why don't you try posting a picture? We might be all wrong, because different hens within a breed can lay differing shades of brown eggs, but it would be fun to guess.
My australorp lays a long, narrow darker brown egg. My barred rocks lay an almost pinkish, lighter brown egg. My wyandottes aren't really consistent on the shade of their eggs. Sometimes they're darker, sometimes they're lighter.
And as the laying cycle goes on, the tint on the egg shell tends to lighten.
Why don't you try posting a picture? We might be all wrong, because different hens within a breed can lay differing shades of brown eggs, but it would be fun to guess.
My australorp lays a long, narrow darker brown egg. My barred rocks lay an almost pinkish, lighter brown egg. My wyandottes aren't really consistent on the shade of their eggs. Sometimes they're darker, sometimes they're lighter.
And as the laying cycle goes on, the tint on the egg shell tends to lighten.