Model 722, you may have the same problem there as we do here in Montana and in what I experience when I lived in British Columbia is that dureing the winter/spring months I have seen moose, elk, deer and sheep forageing after salt along the highways used to de-ice icey road conditions. I' ve had to blow my horn at sheep to get them out of my way because they were licking the salt, I guess kinda like a salt block and the game is learned from condtioning that it will be there at certain times of the year.
No sure if this is what your encountering but I sure hope it is, keep us posted.