[header] How to sex turkeys [title] Compare sizes. [step] Male turkeys are larger than female turkeys. If you're watching a group of turkeys, any adult male turkey should appear notably larger than any nearby females. 
[substeps] Adult males usually weigh between 16 and 24 pounds (7.2 and 10.8 kg), but adult females usually weigh between 8 and 10 pounds (3.6 and 4.5 kg). The size of a turkey can be difficult to judge from a distance, though, especially if the turkey is by itself or if the group is scattered across uneven ground.