I might add here.

Hens who have been banded have been confirmed to be 9 years old. Banded Toms have reached 14 years old.

Different subspecies seem to grow spurs faster than others and Merriams rarely exceed 1".

My 91.35 point Rio only had 1" and .875" spurs!!

I wish I could add more.
Turkeys are incredible animals indeed.

Bill

This info is directly out of The National Audubon Society's Encyclopedia of Birds.