BWR,The 2 main reasons to my understanding turkeys gobble to crows,owls,and for that matter a wide range of sounds is either to challenge or it is a reflex action!Many times we talk about making a bird "shock"gobble this is done to help locate a gobbler and give us a position or direction to go on a bird!You can make that reflex action work on a gobbler using a variety of sounds from a turkey call in "striking a bird"or using one of the many locator calls on the market!My personal favorites are either a coyote howler or a honker flute!!

Monarch isn't a butterfly it's the King of the Spring!