I would LOVE to see a photo of the other "L" marked pen's birds. (The brown colored blue egg layers.) I'm working on a pet project (Alohas) to develop a colorful dual purpose backyard chicken with flashy color. (Basically, an American version of the "Swedish Flower Hen.") Got the colors down, now the work is improving body type and egg laying ability.
A friend wanted to introduce the blue-egg gene, but these are supposed to be single-combed and yellow-legged, without muffs. When I tried introducing EE'er, it just added too many unwanted traits. By the time I bred out the muffs, pea combs, the blue egg color was totally lost - and I'm still trying to breed out the EE'er gray legs! LOL.
Something that looked like a brown leghorn and bred like a brown leghorn, but laid a blue egg, would be PERFECT for this program. (Specifically the single-combed ones.) Would love to see pics of that group . . . is there a way to get a photo of those, too? And do they share eggs from that group with folks? I wanted to introduce Production Red bloodlines anyway, to improve egg laying abilities. To add in blue egg genes on top of that would be icing on the cake! Wow.