The puppies in the nest, perhaps he was very hungry
Taking care of the infant stone stone puppies need patience and patience is highest in terms of care, because if not handled properly the risk of death is very high. From infancy The newly growing needle feathers until adolescent feathers appear vulnerable to various diseases.
Likewise, from the time to reach adulthood if not handled properly, after the adult consequence will not be maximal either from the sound, mental to health