I just have to ask, we had started out with Cuckoos, 3 hens and 1 Rooster. We hatched out 3 batches last year, and on the 3rd batch we got 10 Pure Black poulets and no roosters. the rest were all Cuckoo's does anyone have a Pure Black Maran Rooster? I would like to play around with this new set of chicks. Also can anyone explain what caused this out of 3 sets of eggs. the 3rd batch has black chicks? was it the hobovator? humidity ? Egg rocker? or just plain genetics and climate. were kinda stumped here