Very little is known of these birds in their wild state, although they are brought to Europe in far greater numbers than any other species. We learn from Heuglin that the habitat of the Jako extends from the western coast of Africa, deep into the heart of that continent, and reliable naturalists have seen it in great numbers in Wan and Bongo, up to 8° north latitude. It does not appear to penetrate further east, and is quite unknown in eastern Soudan; how far north and south it is found is at present doubtful. It is worthy of remark that these birds were not many years ago imported from Guinea to Madagascar, where they became naturalised and increased so rapidly, that at the commencement of the eighteenth century their numbers rendered them a perfect scourge to the inhabitants of the island of Bourbon and the Mauritius. The Grey parrot is one of the most highly-prized of our domestic favourites, and well merits the esteem in which it is held. Its praises have been sung in all languages, and every work on natural history relates some anecdotes of its surprising cleverness. Perhaps the most celebrated of the species is one which lived for many years in Vienna and Salzburg, and luckily found an exact and industrious observer of its performances. The Count Courcy Droitaumont was the first who, in the year 1835, in Oken's "Isis," gave us such particulars of its attainments as awakened astonishment in all quarters. This account has been attested by the late possessor of the parrot, President Kleimayrn, at the wish of Lenz, who afterwards published the following narrative:--"Jako noticed and criticised everything that passed before him, gave the proper answer to a question, did as he was bidden, saluted people who entered the room, and made his adieux to those who were taking leave; he wished you good morning and good night at the proper times, and asked for food when he was hungry. "He called all the members of the family by name, and preferred some of them to others; if he wanted me (his master), he called out 'Papa, come here,' and whatever he said, sang, or whistled, was done as a human being would do it. There were times when he seemed inspired like an improvisatore; his voice then sounded like that of a speaker heard from a distance, when too far off to enable you to understand the words.