I got 10 Marans- pullets- from my local feed store as 2 day olds. Now that they are about 6 weeks old. I appear to have about 5 that are Cuckoo Marans, 2 that are getting a golden tint to neck feathers & the rest are much blacker than the others especially darker than the Cuckoo's. Do the hatcherys just send out mixed Marans and you end up with whatever they turn out to be? Do you have to breed a Cuckoo to a Cuckoo to end up with a Cuckoo or do they carry genes for other colors within the breed?