Actually, I think nature produces slightly more females. Typically one male can and will breed with many females in any one season.
As for the subject at hand, here are the facts. Of the 15 confimed sitings, not counting the most recent due to the info not being released yet, only 4 are of a known gender. Of those, 3 were male and 1 female. So a little quick math will tell that is 3 out of 4. Or you can say 75% have been male. Now since it is not known what the gender of the other 11 were, it is not a good practice to make assumptions. The only epic failure is on your part to understand what you are reading. And I am not trying to beat up on you like you are not beating on the MDC but, all of the info is out there.