I know this sounds crazy, but last year we were messing around with my husbands jake call and our new BBW poults. When we used the call we noticed one poult ran to a corner and layed down and the other didn't care. Well those turkeys grew to be 1 hen and 1 tom. We got 4 more poults 3 weeks apart last May and June, again we used the jake call and again with each brooder 1 layed down and 1 didn't care. Right now outside we have 2 toms and 2 hens. So far the jake call has shown very early on the sexes of the poults. Right now we have 8 BBB poults in the brooder and I just remembered about the jake call again and sure enough 2 poults ran to a wall and layed down and the 5 didn't care and 1 wasn't sure,it would lay down then get up then lay down. I am willing to say we will end up with 5 toms and 3 hens. Only time will tell but I thought it was interesting on how it has worked out.