But the birds had not every one bolted, for here sat two of the colony among the broken rocks. These two had not been frightened off. That both of them were greatly alarmed, any one could see from their open beaks, their rolling eyes, their tense bodies on tiptoe for flight. Yet here they sat, their wings out like props, or more like gripping hands, as if they were trying to hold themselves down to the rocks against their wild desire to fly. And so they were, in truth, for under their extended wings I saw little black feet moving. Those two mother murres were not going to forsake their babies! No, not even for these approaching monsters, such as they had never before seen, clambering over their rocks. What was different about these two? They had their young ones to protect. Yes, but so had every bird in the great colony its young one, or its egg, to protect, yet all the others had gone. Did these two have more mother-love than the others? And hence, more courage, more intelligence? We took another step toward them, and one of the two birds sprang into the air, knocking her baby over and over with the stroke of her wing, and coming within an inch of hurling it across the rim to be battered on the ledges below. The other bird raised her wings to follow, then clapped them back over her baby. Fear is the most contagious thing in the world; and that flap of fear by the other bird thrilled her, too, but as she had withstood the stampede of the colony, so she caught herself again and held on. She was now alone on the bare top of the rock, with ten thousand circling birds screaming to her in the air above, and with two men creeping up to her with a big black camera that clicked ominously. She let the multitude scream, and with threatening beak watched the two men come on. A motherless baby, spying her, ran down the rock squealing for his life. She spread a wing, put her bill behind him and shoved him quickly in out of sight with her own baby. The man with the camera saw the act, for I heard his machine click, and I heard him say something under his breath that you would hardly expect a mere man and a game-warden to say. But most men have a good deal of the mother in them; and the old bird had acted with such decision, such courage, such swift, compelling instinct, that any man, short of the wildest savage, would have felt his heart quicken at the sight. “Just how compelling might that mother-instinct be?” I wondered. “Just how much would that mother-love stand?” I had dropped to my knees, and on all fours had crept up within about three feet of the bird. She still had chance for flight. Would she allow me to crawl any nearer? Slowly, very slowly, I stretched forward on my hands, like a measuring-worm, until my body lay flat on the rocks, and my fingers were within three _inches_ of her. But her wings were twitching, a wild light danced in her eyes, and her head turned toward the sea.