Estancia Espartilla, Argentine Republic. 203 



Breeds early in December. Nest composed of twigs^ roots, 

 and hay, lined with wool, feathers, and hay. It is placed in 

 the fork of a tree, some height from the gronnd. Eggs four 

 in number, though many are laid waste on the ground. The 

 native name is " Urruca.^' 



'+'54. COCCYZUS MELANOCORYPHUS (Vicill.). 



Rather uncommon, appearing in September and departing 

 northwards in March. Breeds late in IS ovember. Nest very 

 slight, composed of a few loose twigs, with a little lining of 

 hay. Eggs three in number, of a uniform sea-green. The 

 native name is '^^Coucou," from its call. 



55. CoNURus PATAGONus (Vicill.). 



Very common, from March to August in large flocks. In 

 spring they breed in some high banks about fifteen miles 

 south of us. The native name is '' Barraucaro.^^ 



56. BOLBORIIYNCHUS MONACHUS (Bodd.). 



Very numerous all the year, living in small flocks and 

 breeding, as many as six pairs together, in the same large 

 structure of nests. Its native name is '^Lora." 



57. Strix flammea, Linn. 



Uncommon, though they breed with us occasionally in the 

 sheds. 



"" 58. Asio BRACK YOTUs (Forst.). 



Fairly common all through the year. Breeds late in 

 November under tufts of paja-grass. Its native name is 

 " Lechuzon.^' 



59. Speotyto cunicularia (Mol.). 



Very common all the year. Breeds early in October. Its 

 native name is " Lechuza.^" 



60. Circus cinereus (Vieill.) . 



Not uncommon, resident all the year. (C/*. Ibis, 1891, 

 p. 18.) 



~A61. BuTEO SWAINSONI, Bp. 



Of occasional appearance, arriving in immense flocks in 

 January and departing a short while afterwards. (See my 

 notes, Ibis, 1890, p. 426.) 



