Smuvers Farm
Melvin Up the Taterhole
Oyster shell isn't a *safer* option than egg shell, but it is higher in calcium..... HOWEVER, it is cheaper and easier to source egg shell. Washing, air drying and crushing them is perfectly fine... just don't mix them into their feed as you don't want to *force feed* calcium to those chickens who don't need it... just shake the crushed shells out into their run/yard.