Apuntamientos para la historia natural de los páxaros del Paragüay y
Rio de la Plata. 3 vols. Madrid, 1802.
Although this celebrated work relates mainly to the neighbouring State
of Paraguay, so many birds are common to Paraguay and La Plata that it
has of course a most important bearing on the Ornithology of the latter
country. Azara, unfortunately, gave only Spanish names to his birds,
so that the Latin titles of them are mostly those of Vieillot, who
translated Azara's remarks and gave scientific names to his birds in
different volumes of the 'Nouveau Dictionnaire d'Histoire Naturelle'
(Paris, 1816-19). A most useful Index to Azara's 'Apuntamientos' was
published in 1847 by Dr. G. Hartlaub of Bremen[11]. A more modern
_résumé_ of the Birds of Paraguay, in which much information is
contained, has been recently written by Hans, Graf v. Berlepsch[12].
[11] Systematischer Index zu Don Felix de Azara's Apuntamientos para
la historia natural de los páxaros del Paraguay y Rio de la Plata.
Bremen, 1847.
[12] Journ. f. Orn. 1887, p. 1.