BIRDS. 47 



1. Myiobius albiceps. G. R. Gray. 



Muscipota albiceps. D'Orh. et Lafr. Mag. de Zool. 1837, p. 47. 



This bird is not uncommon in Tierra del Fiiego, and along the western coast 

 of the southern part of the continent, where the land is covered with trees ; 

 it is occasionally found near Valparaiso in central Chile ; and likewise in Banda 

 Oriental on the banks of the Plata, where the country is open, from all of which 

 places I procured specimens. At Port Famine and in the islands of the Chonos 

 Archipelago, it inhabits the gloomiest recesses of the great forests. It generally 

 remains quietly seated high up amongst the tallest trees, whence it constantly 

 repeats a very plaintive, gentle whistle, in an uniform tone. The sound can be 

 heard at some distance, yet it is ditficult to perceive from which quarter it 

 proceeds, and from how far off; and I remained in consequence, for some time 

 in doubt, from what bird it proceeded. 



2. Myiobius auriceps. 



Tyrannula auriceps. Gould, MS. 



M. nij'iis ; capite cristato nitidh Jiavo ; plumarum apicibus hrunneis ; alia bniimeis, 

 secundariarum marginibus tectricumque apicibus rii/is ; caudd pallid^ brunned, 

 plumarum extcrnarum marginibus externis pallidioribns ; gutture rorporeqne 

 subtuspallidhjlavescenti-albis; plumis singulis fascia centrali brunned. 



Long. tot. .5-^ unc ; alcn, "2-^ caudn; 2^ tarsi, -^ rost. -^. 



All the upper surface rufous ; the basal portion of the coronal feathers yellow ; 

 tail uniform light brown, the external margin of the outer feathers lighter ; 

 wings brown, the external margin of the secondaries and the tips of the 

 greater and lesser wing-coverts rufous ; throat and all the under surface pale 

 huffy white, each feather having a brown mark down the centre; bill brown ; 

 feet black. 



Habitat, Buenos Ayres, La Plata, (August). 



This bird is about the size of a sparrow. It is nearly allied to Tyrannula 

 ferruginea of Swainson and M. cinnamonea of D'Orbig. and Lafr. 



