"This species," says the prince, "is called 'Capueira' by the Brazilians. Its habits and mode of life are very similar to those of the Hazel Grouse, or Gelinotte (_Bonasia sylvestris_). It never frequents the open country, but confines itself entirely to the thick woods. In the early part of the year the 'Capueira' lives in pairs, and after the breeding season the families remain in coveys of from ten to sixteen or more in number. These birds run very quickly, and procure their food among the dry leaves on the ground in the midst of the extensive woods. The stomachs of such as I examined contained fruits, berries, insects, small stones, and a little sand. The part of the country in which I met with them is the eastern portion of Southern Brazil, from Rio de Janeiro to 13° south latitude; by Spix they appear to have been found still farther north. In the vast forests bordering the rivers Mucuri, Alcobaça, Belmonte, and Ilheo they were very common, and we frequently killed them for the sake of their flesh, which is excellent. Their loud and remarkable voice is heard only in the forests, where it reverberates to a great distance. Azara states that the cry is uttered by both sexes, but I believe it is emitted by the male bird only. Like the Domestic Cock in Europe, it frequently aroused us at the break of day, bidding us, as it were, continue our researches among the grand but almost impenetrable forests of that magnificent country. They commenced calling before daybreak, thus affording us ample time for breakfasting, and enabling us to start by the dawn of the young day."