My turkey hens are 2 and 3 yrs old and quit laying in Oct. which I didn't think much of as the chickens cut back too, and since this winter I hadn't used heat lamps the chickens kicked back into laying early March....now here it is nearly May and my turkeys haven't produced a single egg.... 1 is a slate, one Narragansett and the other a black Spanish mix that I hatched out the spring before last. Is it notmal for them to go over 6 months with out laying???