Golden Cuckoo Maran hen or roo?

Discussion in 'What Breed Or Gender is This?' started by chickspea, Mar 31, 2015.

  1. chickspea

    chickspea Out Of The Brooder

    Mar 30, 2015
    I have a week old GCM that looks very much like a roo to me based on internet research.
    Can anybody help based on the pics? The breeder says it can still be a girl hen even it is not brown (he was very light and grey as a day old chick..)


  2. Chicken Girl1

    Chicken Girl1 Queen of the Coop

    Mar 3, 2015
    I can't sex it until it's older, sorry :-(.
  3. Wyandottes7

    Wyandottes7 Overrun With Chickens

    Jul 24, 2013
    Too young to sex.
  4. Lady of McCamley

    Lady of McCamley Overrun With Chickens

    Mar 19, 2011
    NW Oregon
    I would go by what the breeder says as he is familiar with his lines.

    I had to double check my facts as I haven't raised GCM (only BCM with possibility of Blue and Splash), but GCM is not autosexing...the males TEND to be darker than the females, but not always.

    Many lines of autosexing breeds have some questionable chicks who don't follow the rule distinctions (Rhodebars, for example, can have Wheaten throw backs which can be girl or breeder's experience in her line is that the Wheaten usually is a boy...but not always).

    So I would trust your breeder and wait it out. Look for other signs. Marans typically broadcast with the comb pretty early. Compare them to each other, and the one that is getting a large comb fast, that will be your roo.


    EDITED for clarification
    Last edited: Apr 2, 2015
  5. chickspea

    chickspea Out Of The Brooder

    Mar 30, 2015
    Thank you everyone for the answers!
    I found this thread here:, and I kinda expected the "worst"..

    My light GCM chick is now growing a rowel, and is getting ahead of the brown GCM chick which looks still more like a pullet in both feathering and size.
    This is the latest pick. I real life it is much more brave :), but hates being take out of the box alone..


    Based on the latest developments it looks like the GCM is somewhat autosexing, at least when it comes to the light grey colored chicks, and they are cockerels with very high probability. The breeder meanwhile figured that what she thought to be a pullet is actually a cockerel, and is doing further experiments with the light grey ones. I might have gotten the last 98% roo as straight run..

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