Marans Sometimes lays lighter egg?

[Chicken_overlord]

I have two splash and blue marans hens. They are sisters and lay nice large, dark eggs. However, sometimes (I'm pretty sure its the blue hen, but not 100% positive), she will alternate between laying a plain brown egg and then go back to dark eggs. Is this normal? I know its not any of my BCM hens, so it has to be either the splash or the blue hen. It's so bizarre. I've attached a comparison picture of the dark eggs and the plain brown egg she sometimes lays. They're newer layers (within the last two months) so maybe she's popping out two in one day and the second egg is coming out light? Any ideas?

 

[BlindLemonChicken]

My Marans eggs vary as well. Not sure I’ve seen them that light precisely. Is it possible one is laying the dark eggs and the other isn’t?

 

[Not-so Slick Chicken]

Normal, yes.

Brown eggs are a white eggshell with a brown "coat" painted on the outside.
Sometimes it's not applied evenly (speckles) or they'll gradually have less to apply to the egg through their laying season. A break can let them build up the paint again (like a moult, or winter break)

Not all Marans will have the famous chocolate browns they're known for. I mostly see that with show quality SOP birds, where they're selecting their best egg colors.

 

[Chicken_overlord]

My Marans eggs vary as well. Not sure I’ve seen them that light precisely. Is it possible one is laying the dark eggs and the other isn’t?

I'm pretty positive, though it is possible. Sometimes Ill find two dark eggs in the nest boxes that I know are from the two blue and splash girls and not my BCMs (my two BCMs lay smaller speckled pullet sized eggs, the blue and splash lay full sized large eggs). It also isn't the same as them going lighter as they lay. Its one day dark, next day plain brown, a couple of days later dark again. I could always separate them to be sure, but its hatching season and I don't want to throw one in with my silverudds blue rooster and be out a marans hen for a month. I might just have to bite the bullet and deal though because this mystery is driving me crazy!

 

[Chicken_overlord]

Normal, yes.

Brown eggs are a white eggshell with a brown "coat" painted on the outside.
Sometimes it's not applied evenly (speckles) or they'll gradually have less to apply to the egg through their laying season. A break can let them build up the paint again (like a moult, or winter break)

Not all Marans will have the famous chocolate browns they're known for. I mostly see that with show quality SOP birds, where they're selecting their best egg colors.

I know that not all marans lay those gorgeous dark eggs, I've had to get rid of a few hens that were laying lighter eggs even though they came from dark lines. Even the SOP birds can throw lighter layers. The wierd thing is that this hen just seems to be alternating between dark and light which is why I wonder if she is occasionally laying two eggs in a day, with most of the pigment going to the first egg laid. Ultimately, my only option may be to separate her and the splash hen to figure out who it is for sure and to see if she really is sometimes laying two a day. The timing just stinks with it being hatching season, I was just curious if anyone else had experienced something similar?