On observing the curious, powerful beak of a macaw, we at once see that it must be an inhabitant of a region producing hard fruits, which require the application of considerable strength to break them. At morning and evening flocks of this large and richly-plumaged bird may be observed flying across the streams in all directions--their loud, harsh screams echoing among the forests through the calm air--wheeling and turning before they alight on the tops of the palms to feed. They belong to the Psittacidae, or parrot tribe, and are known at once by the great length of their tails, and by having their cheeks destitute of feathers. There are several species which frequent the trees growing on wet and swampy ground. The red and blue macaw, the largest and handsomest of the family, is well described by Waterton. Rare in size and beauty among all the parrots of South America, the macrocercus macao will force you to take your eyes from the rest of animated nature and gaze at him. His commanding strength, the flaming scarlet of his body, a lovely variety of scarlet, yellow, blue, and green in his wings, the extraordinary length of his scarlet and blue tail, seem all to join and demand for him the title of Emperor of all the Parrots. When the coucourite palm-trees have ripe fruit on them, they are covered with this magnificent parrot. He is not shy or wary. You may take your blow-pipe and a quiver of poisoned arrows, and kill more than you will be able to carry to your hut. They are very vociferous; and, like the common parrots, rise up in bodies towards sunset, and fly, two and two, to their places of rest. It is a grand sight to see thousands of aras flying over your head, low enough to let you have a full view of their flaming mantles. The Indians find the flesh very good, and the feathers serve for ornaments in their head-dresses. Bates saw a flock feeding on the fruits of a Bacana palm, and looking like a cluster of flaunting banners beneath its dark green crown. They build their nests in the hollows of decayed trees, and lay twice in the year--generally two eggs at a time, the male and female alternately watching over them. They are said to increase the size of the hole with their powerful beaks, should it not be sufficiently large for their purpose. They fly to a distance of several miles to feed, but--like rooks in England--return to their homes in the evening. This macaw frequently measures, from the tip of the bill to the extremity of the tail, forty inches and more. There are, besides, several other species of the red and yellow, blue, and blue and yellow, which equal the scarlet and blue in size,--their habits being very similar. They are easily tamed, and can be taught to repeat words, and sometimes even phrases. They are remarkable for their longevity, some having been known to live to one hundred years.