Buff Catalanas

I ordered 25 Buff Catalana chicks from Ideal back in March, and lost 4
the first few days. So, of the remaining 21, I seem to have 13 girls
and 8 boys, one of which is definitely NOT a Buff Catalana. We will
eat him first, as he is of no recognizable breed. I plan to keep 2
cocks, so I have left those 2 with the pullets and separated the other
6 to a grower pen.
Of the 8, 2 have bright blue earlobes, and 2 or 3 of the pullets do
too. Has anyone else seen this in Catalanas?
Like Jesse's Buckeyes, there is a lot of size and feather variation,
but I will keep choosing and choosing to try and improve the next
generation. One cock was/is always the first to try anything and the
biggest from the very beginning. Regrettably, he is also the lightest
colored, with the shortest tail of all the boys. I am hoping his tail
will catch up.
I'll probably switch my keepers a dozen times before it is time to eat
the others, but it is fun.
I phased out my Fayoumis, as the eggs were just too tiny, and the hens
too aggressive. Wali, my roo, is now living the good life with a
mixed flock of heavy layers with my DH's boss. I have only a
BR/Fayoumi pullet, pure black, and an Ameraucana/Fayoumi pullet, dark
grey, who saved her own life by starting to lay green eggs.
My DH is in love with Dark and White-Laced Red Cornish, and of his Dk
hens, 3 have set, 2 successfully, with 4 and 2 chicks respectively and
of 2 WLR, one set, with one chick hatched. All the chicks are WLR. The
Dark cock turned out to be infertile (we also tested him on other
breed hens) and made excellent chicken and dumplings. That is surely
the reason for the poor hatch rate too. THey all started with 7 or 8
eggs, and one poor DK didn't hatch a single one. She has gone broody
again, and I will get her a few feed store chicks then end of this
week. Poor thing, wants to be a mama so bad.