They should not breed in winter but that depends on where you live. I have never had a single winter egg. Page 17 in the breeding manual it says...
Choose hens that reach sexual maturity by 28 weeks of age and are ready to breed at the appropriate time of year. Turkeys do have some breeding seasonality which is variable with latitude and weather conditions. For example in Central Kansas the following varieties will, on average, come into lay during these months:
Beltsville January/February
Bronze February
Narragansett March
Bourbon Red April
Black late March/early April
Slate late March/early April
Royal Palm April or later
Choose hens that reach sexual maturity by 28 weeks of age and are ready to breed at the appropriate time of year. Turkeys do have some breeding seasonality which is variable with latitude and weather conditions. For example in Central Kansas the following varieties will, on average, come into lay during these months:
Beltsville January/February
Bronze February
Narragansett March
Bourbon Red April
Black late March/early April
Slate late March/early April
Royal Palm April or later