“The sympathy shewn by gregarious birds for their wounded companions is usually never more strongly manifested than in the Boobies. In the wanton sport of shooting at them when sailing past the kays and islets they resort to, there are few who have not witnessed the extraordinary efforts made by the clamorous flock to assist a wounded bird, when fluttering in the water, and unable to regain the wing. An accident which happened to one of the two Boobies we have in our yard, gave us an opportunity of seeing traits of this feeling, and of its attendant emotions. My little nephew, in chasing with a small whip one of our birds, entangled the lash about its wing, and snapped the arm-bone. The one bird not alone shewed sympathy for the other, but exhibited curiosity about the nature and character of the accident. Our two birds are male and female. The wounded Booby withdrew into a lonely part of the yard, and stood there drooping. The female sought him as soon as she heard his cry of agony, and after ascertaining, by surveying him all round, that the injury was in the wing, proceeded to prevail on him to move the limb, that she might see whether he was really disabled beyond the power of using it for flight. After a quacking _honk_ or two, as a call to do something required of him, the female stretched out one of her wings;—the wounded male imitated her, and, making an effort, moved out, in some sort of way, the wounded member to its full length. He was now required by a corresponding movement to raise it:—he raised the broken arm, but the wing could not be elevated. The curiosity of the female was at a standstill. After a moment’s pause, her wounded companion was persuaded to make another trial at imitation, and to give the wings some three or four good flaps. He followed the given signal, gave the required beats upon the air with so thorough a good will, to meet the wishes of his curious mate, that he twirled the broken wing quite round, and turned it inside out. The mischief was prodigiously increased. It was now necessary to put a stop to this process of investigation of the one bird into the misfortune of the other. I came in just as these exhibitions had occurred, and taking up the bird with its twisted wing, I was obliged after setting the limb, to restrain him from any further gratification of his mate’s curiosity by tying the wing into place, and keeping it so tied, till the bone united. The one now attended the other, and carefully examined, day after day, the broken limb. Calling on him to make an occasional effort to raise the disabled and immovable member, she used her ineffectual endeavours to persuade him to lift it, though tied, by lifting her own from time to time.