HERBERT VILLARRAGA AS the sound of exploding artillery echoes in the distance, Senia, a big white bunny, twitches nervously in the arms of his owner. "He's afraid," explained the farmer, Yevhennia, stroking the rabbit. Here in Yampil, a crater-pocked frontline village in east Ukraine recaptured by Ukrainian forces at the end of September after months under Russian occupation, buildings lie in ruins and most people have left. But not Yevhennia and Ivan, who say they could not bear to abandon their rabbits, ducks, chickens and pigeons. It has not been easy. "We've always kept rabbits. But when (the missiles) started…