Still Grazing

My flock is grazing on green grass as late as December 31 in upstate New York.  Who'd a thunk it?  This time last year the hillside was covered in snowy drifts and the sheep were in the barn for the winter.  When I opened the gate today I had to shoo them outside.  Once a few of them saw the gate open, they ran up the hill, doing mule kicks and acting like they had busted out of jail.   Temps are due to dive next week and I don't know how much grazing we'll be doing in January, but for now it's positively wonderful to see the woolies on the hillside.