BLACK TYRANT 155 
of the wing-quills marked with rufous or chestnut 
colour, 
The Ashy-black Tyrant inhabits the Mendoza 
district, and is also a summer visitor in Patagonia, 
where it was obtained by Dr. Doring. Speaking of 
its habits he says the male is solitary, perches on the 
summit of a bush or dry twig, emits at intervals a 
song or call composed of two syllables, plaintive 
and flute-like in character, and uttered while the 
bird rises up a few feet into the air. During this 
performance the white bands on the wings are dis- 
played conspicuously and a humming sound is 
produced. 
BLACK TYRANT 
Cnipolegus hudsoni 
Uniform dull black; a broad bar across the bases of the inner 
webs of the wing-feathers white ; two outer primaries much pointed 
at their extremities; bill plumbeous; feet black; length 6 inches. 
At once distinguishable from the preceding species (C. anthracinus) 
by its smaller size and the peculiar narrowed outer remiges. 
THIS species is found in the western provinces of 
the Argentine Republic, and, like C. anthracinus, 
which it closely resembles, is a summer visitor to 
Patagonia, where it makes its appearance in October. 
The plumage is intense black, with the inner webs 
of the remiges at their base white, but the wing- 
band, which is over an inch in breadth, shows only 
