White met with this Parrot in the dense forests of Campo Colorado near Oran, where it is found in flocks of about twenty, "their flight being limited, for the most part, to the clear aisles beneath the branches." White's specimen in Sclater's collection, from which our figure (Plate XIV.) is taken, agrees with others of the species obtained by Natterer in Mato Grosso. 280. BOLBORHYNCHUS MONACHUS (Bodd.). (GREEN PARRAKEET.) +Conurus murinus+, _Burm. La-Plata Reise_, ii. p. 441; _Darwin, Zool. Beagle_, iii. p. 112 (Paraná). +Bolborhynchus monachus+, _Scl. et Salv. Nomencl._ p. 113; _Durnford, Ibis_, 1877, p. 186 (Buenos Ayres); _Gibson, Ibis_, 1880, p. 3 (Buenos Ayres); _White, P. Z. S._ 1882, p. 621 (Catamarca, Santiago del Estero); _Barrows, Auk_, 1884, p. 28 (Entrerios); _Burm. P. Z. S._ 1878, p. 77. _Description._--Green; front grey, with paler margins to the feathers; wings blackish, with slight bluish edgings: beneath grey, with lighter margins to the breast-feathers; under wing-coverts, flanks, and crissum pale green; bill whitish: whole length 11·0 inches, wing 5·5, tail 5·3. _Female_ similar. _Hab._ Paraguay, Uruguay, and Argentina. The Common Green Parrakeet, called _Cotorra_ or _Catita_ in the vernacular, is a well-known resident species in the Argentine Republic. It is a lively restless bird, shrill-voiced, and exceedingly vociferous, living and breeding in large communities, and though it cannot learn to speak so distinctly as some of the larger Parrots, it is impossible to observe its habits without being convinced that it shares in the intelligence of the highly-favoured order to which it belongs. In Buenos Ayres it was formerly very much more numerous than it is now; but it is exceedingly tenacious of its breeding-places, and there are some few favoured localities where it still exists in large colonies, in spite of the cruel persecution all birds easily killed are subjected to in a country where laws relating to such matters are little regarded, and where the agricultural population is chiefly Italian. At Mr. Gibson's residence near Cape San Antonio, on the Atlantic coast, there is still a large colony of these birds inhabiting the Tala woods (_Celtis tala_), and I take the following facts from one of his papers on the ornithology of the district.