There is a way you can "estimate" sex starting at a week old. Get a good gram scale like one for measuring dry ingredients for cooking and obtain their weight weekly in grams. The males will begin to weigh more than the females starting at one week of age. This may not prove to be 100% but it will be pretty accurate when you start seeing large weight differences in them. There have been a couple of studies I've read about it and I will link the articles. Mind you, the turkeys in the articles I believe are BB but it is still applicable to Heritage varieties as well. I am currently trying to prove or disprove this theory with my own poults. I weighed them at 10 days old and will weigh them every week or two (as I get time, I'm in grad school) and have made my predictions on gender based on their baseline weight. For example, my largest poult is 142 grams and my smallest is 77 grams which is the "runt." The next two smallest are 102 and 104 grams. I will continue to weigh them until they can be sexed based on their phenotypical appearance and will post my own study results to BYC in the end. I am a huge nerd. lol
https://www.researchgate.net/public...rences_in_body_weight_between_male_and_female
I will look for the other article, I'm on my way out the door to work now.
Thoughts on this
@R2elk and
@casportpony ?