If you got straight-run meat birds please post how many females and males you had, the type of bird, and the hatchery. If enough people give me data, I will be able to statistically prove* whether or not "straight-run" is really what we think it is. In general, we'd expect our straight-ruin batches to approach a 50/50 ratio given a large enough sample size. And I expect that is what I'll find. But it is possible that hatcheries in general, or some specific hatcheries, are more likely to ship slightly more hens in "straight-runs" in order to have more males to sell in expensive sexed batches. So, I'll start this off: I ended up with 7F and 3M CX from McMurray** *for those of you who are interested in statistics, I plan to aggregate all the data I collect to maximize the sample size, then apply a binomial test to see if the observed proportion is different from the expected 0.50 proportion. I will then split the file by hatchery and do the same thing. And split it by breed and do the same thing. Then report back **by the way, that is well within an expected proportion given the sample size is only 10. Only by collecting data from lots of people and aggregating it will I have enough statistical "power" to prove anything.