Spring is the most important time of year for wildlife to have access to all the nutrients and minerals they need. After maintaining and surviving all winter, spring is the time for regrowth and rebirth.
Deer are regrowing their antlers and birthing fawns ... both of which require top-shelf health to maximize potential. And turkeys are doing the same ... minus the antlers of course.
Dr. Grant Woods does an excellent job talking about the necessity for all wildlife to attain the optical amount of all trace minerals, and he describes his process for making sure the wildlife on his property have everything they need this time of year.