BIRDS. 
47 
1. Myiobius albiceps. G. R. Gray. 
Muscipeta albiceps. D’Orl. et Lafr. Mag. de Zool. 1837, p. 47. 
This bird is not uncommon in Tierra del Fuego, 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 difficult 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. rufus ; capite cristato nitidb Jlavo ; plumarum apicibus brunneis ; aiis brunneis, 
secundariarum marginibus tectricumque apicibus rufis ; caudd pallidb br tinned, 
plumarum extcrnarum marginibus externis pallidioribus ; gutture corporeque 
subtus pallidb Jlavescenti-albis ; plumis singulis fascia centrali brunned. 
Long. tot. 5^ unc ; aloe , 2^ caudoe , 2^ tarsi , A- 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 
buffy 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. 
