TURDUS MAGELLANICUS. 3 



This Thrush has, I believe, a partial migration in Buenos Ayres. In 

 the autumn and winter I have frequently observed it in localities where 

 it is never seen in summer. 



2, TURDUS RUFIVENTEIS, Vieill. 

 (RED-BELLIED THRUSH.) 



Turdus rufiventris, Scl. et Salv. Nomencl. p. 2 ; Burm. La-Plata Reise, ii, p. 474 ; 

 Hudson, P. Z. 8. 1870, p. 89 (Buenos Ayres) ; Durnford, Ibis, 1877, p. 167, 

 1880, p. 417 (Buenos Ayres) ; White, P. Z. S. 1882, p. 592 (Salta) ; Narrows, 

 Butt. Nutt. Orn. Cl. viii. p. 85 (Concepcion). Turdus rufiventer, Seebohm, 

 Cat. B. v. p. 222. 



Description. Entire upper parts olive-grey ; throat white, striped with dark 

 brown, the striped portion extending to the chest ; rest ofunder surface, also 

 under wing-coverts, rufous-red, deepest on the belly ; bill brownish yellow ; feet 

 brown : total length 9-0 inches, wing 4-6, tail 3-6. Female similar. 



Hab. S.E. Brazil, Paraguay, Uruguay, and La Plata. 



The Red-bellied Thrush, distinguished from the species just described 

 by its larger size and the bright rufous colour of its under plumage, is 

 common everywhere in the Plata region, and does not appear to be 

 migratory. It is a noisy, strong-winged, quarrelsome bird, closely 

 resembling the Dusky Thrush in its manners. It inhabits forests, runs 

 on the ground in search of food, and when approached darts away with 

 loud chuckling notes, flying close to the ground. These birds are also often 

 seen pursuing each other through the trees with loud harsh screams. 



The song has a faint resemblance to that of the English Song-Thrush, 

 being composed of a variety of notes uttered in the same disconnected 

 manner, with frequent pauses; but it is, both in sweetness and 

 strength, inferior to that of the English bird. As a rule this Thrush 

 sings concealed in a thick bush or tree. 



The nest is deep, well made, plastered inside with mud, and concealed 

 in the centre of a large bush or low tree. The eggs are four, pale blue 

 in colour, and thickly spotted with brown. 



3. TURDUS MAGELLANICUS, King. 

 (MAGELLANIC THRUSH.) 



Turdus mageUanicus, Seebohm, Cat. B. v. p. 223, pi. xiv. Turdus falkland- 

 icus, Scl. et Salv. Nomencl. p. 2 ; Hudson, P. Z. S. 1872, p. 548 (Rio Negro) ; 

 Doring, Exp. al Rio Negro, Zool. p. 36 (R. Colorado and R. Negro). 



Description. Head, wings, and tail brownish black ; the remaining portions 



B2 



