my one gyp does it too but she is really lean and i feed free choice and she will cover it up but she only eatd about a 1/2 a cup aa day
a friend said his dog did it and he googled it and it said the feed was to high or rich in protien or he didnt like the type of dog food and he change to a lower percentage and he stopped doing it
Thats just like mine.. I think shes on the lean side but she'll only eat however she pleases