CHERRIE : ORNITHOLOGY OF THE ORINOCO REGION. 219 
The fresh colors of adult birds are : eye seal brown ; bill plumbeous ; 
feet black. 
This species frequents the thickets bordering the streams and ponds. 
Its actions are much like those of Sayoniis. 
KnipolEgus pusillus Sclater & Salvin. 
Cnipolegus pusillus Scl. & Salv., Xomencl. Av. Neotr. 1873. p. 158; 
Berlepsch & Hartert, p. 36. 
Observed only in the vicinity of the falls of Atures where two males 
that were sent to the Tring Museum and recorded by Berlepsch & 
Hartert, were taken in September, 1898. 
Machetornis rixosa flavigularis Todd. 
Tyrainius rixosus \'ieill.. Xouv. Diet. XXXV. 1819. p. 85. 
Machetornis rixosa Berlepsch & Hartert, p. 36. 
Machetornis rixosa flavigularis Todd., Ann. Carnegie Mus. VHI. 1912. 
p. 210 (Type S , Tocuys, Lara, Venezuela, in Carnegie Museum). 
Native name, Pajaro amarillo jinetero. A common, although not 
abundant species, inhabiting the open and sparsely wooded savanna 
regions. While it is neither noisy nor brilliant in plumage, its curious 
habit of keeping on the ground close about domesticated animals, as 
they wander about the savannas and open commons of the villages, is 
certain to attract attention. Or, if not intent on capturing the insects 
that are constantly fluttering up from the grass, these birds are sure 
to be seen contentedly riding about on the back of some animal. 
About Altagracia and Caicara I observed them riding on the backs 
of dogs, pigs, cattle, horses and burros. 
A female taken May 9th was brooding. 
Adult birds have the eye saturn red; bill black: feet blackish. 
Xot observed above Caicara. 
Platytriccus griseiceps (Salvin). 
Platyrhynchus griseiceps Salv., Bull. B. O. Club. VH. 1897. p. 15; 
Berlepsch & Hartert, p. 37. 
Specimens were sent from points on the Caura River to the Tring 
Museum by Klages from Suapure. and by Andre from Nicare and 
La Pricion. 
