With the parrot mutual aid is developed to such an extent that Kropotkin places it “at the very top of the whole feathered world for the development of its intelligence.” The white cockatoos of Australia, in raiding a crop, mutually aid each other so shrewdly as to “baffle all stratagems” to thwart them. “Before starting to plunder a cornfield, they first send out a reconnoitering party which occupies the highest trees in the vicinity of the field, while other scouts perch upon the intermediate trees between the field and the forest and transmit signals. If the report runs ‘all right,’ a score of cockatoos will separate from the bulk of the band, take a flight in the air, and then fly towards the trees nearest to the field. They also will scrutinize the neighborhood for a long while, and only then will give the signal for general advance, after which the whole band starts at once and plunders the field in no time.” Mutual aid is very conspicuous among pelicans. “They always go fishing in numerous bands and after having chosen an appropriate bay, they form a wide half circle in face of the shore, and narrow it by paddling towards the shore, catching all the fish that happen to be enclosed in the circle. On narrow rivers and canals they even divide into two parties, each of which draws up on a half circle, and both paddle to meet each other, just as if two parties of men dragging two long nets should advance to capture all the fish taken between the nets when both parties come to meet.” Our familiar friend, the house sparrow, is not overlooked and is said to have practiced mutual aid to such an extent as to be recognized even by the ancient Greeks. Kropotkin quotes from memory, the Greek Orator who exclaimed: “While I am speaking to you a sparrow has come to tell other sparrows that a slave has dropped on the floor a sack of corn, and they all go there to feed on the grain.” Sparrows also maintain social discipline: “If a lazy sparrow intends appropriating the nest a comrade is building, or even steals from it a few sprays of straw, the group interferes against the lazy comrade.” Kropotkin presents a number of well authenticated observations of the great compassion and sympathy prevailing among those wild creatures, which are popularly supposed to be always flying at each others’ throats: J. C. Woods’ narrative “of a weasel which came to pick up and carry away an injured comrade;” Brehm, who “himself saw two crows feeding in a hollow tree a third crow which had a wound several weeks old.” Captain Stansbury, on his journey to Utah, as quoted by Darwin, “saw a blind pelican which was fed, and well fed, by other pelicans upon fishes which had to be brought a distance of thirty miles.”