New to group, egg question

[mama22jaynes]

Hello all. We have a very small flock. A total of 6. We ordered day old females who are now a little over 5 mo old. One ea RIR, White Leghorn, Buff Orpington, Plymouth Rock, Jersey Giant, and we acquired an ISA Brown Roo who was 5 mos old when our "girls" were 3 mos.

We discovered our White Leghorn is also a Roo. So far there is no fighting, and the girls aren't overly "burdened."

Here's the question. Someone started laying eggs right at 5 mos. Given our diverse flock, we have no idea who the eggs are from. We looked online but that wasn't very helpful.

I've attached a pic, anyone have any ideas?

 

[aart]

I'd guess the Rock...but could be any of them except the leghorn of course.

Examine vents and pelvic points to know for sure.
Vent:
Dry, tight, and smaller - usually not laying.
Moist, wide, and larger - usually laying

Pelvic Points 2 bony points(pelvic bones) on either side of vent:
Less than 2 fingertip widths apart usually means not laying.
More than 2 fingertip widths apart usually means laying.

 

[mama22jaynes]

Makes sense. Thanks!