Okay, this sound stupid, and we've been raising Jacksons for 10 years or more, but here at 3 months of age I have 9 babies and only two are distinctly horned and positively identified as male. Several others have tiny nubbins of horn, others none, so we're calling seven female. Or is this correct? I'm not sure how to differentiate by vent, etc. In the past they would color up to green at 3-4 months, and I can see some of the females have that red streak on their flanks, like our adult females do (but never the adult male), so this reconfirms femaleness. Can anyone offer insight here, as I'm surprise to have so few males in a litter. Thanks!!