Guesses on who laid this egg?

[Cawagula]

Appears one of my flock started laying yesterday. Egg up top is my Copper Marans egg for comparison, middle is the mystery and bottom is an Ayam Cemani. Was out most of the day and came back to three eggs, though I didn't do a late check last night.

Current flock:


1 Black Copper Marans - 1 Year
1 Ayam Cemani - 7 Months
1 Silver Laced Wyandotte - 28 Weeks
1 Rhode Island Red - 28 Weeks
1 Lavender Orpington - 28 Weeks
1 Easter Egger - 28 Weeks
1 Plymouth Barred Rock - 28 Weeks

Only the BCM and AC were laying, didn't think I'd see any others start till Spring. My thought based on color is the Barred Rock but not 100% sure. Any more informed guesses?

 

[Percheron chick]

The redness of the comb and waddle should indicate who the new layer is.

 

[Cawagula]

The redness of the comb and waddle should indicate who the new layer is.

They have all been pretty red for a few weeks now, I assumed they were all pretty much ready but the shortened daylight hours were preventing laying.

 

[PrairieWillowFarm]

Looks like a PBR or Maran to me - some birds have darker eggs when they first start to lay; Marans in particular are this way every season so that also makes my think it is a BPR and not Maran.
That being said, some BCM lay a more milk-choco egg in general and they do tend to have speckling which is less common with the PBR so I would not make any bets on which breed that particular egg belongs to.

 

[Chicken poppy]

A great way to check is to look at vents.

Non laying hen: Dry, tight, small vent
Laying hen: Large, oval like, moist vent.