Barry Unsworth said this quote

Sometimes in storm weather the shore had fluttered with disabled swallows. They crouched lower for his approach, without strength to escape. In his hands they pulsed with that same pulse. He had taken a bird and warmed it between his hands or inside his jacket, brought the life back until it was able to fly. Sometimes, released from his hands, they circled once around him before flying away; in gratitude, or so the child had believed--and the belief had survived all the man's science.