THE COCK 05" THE HOCK. 
ront over tlie iDill. The upper tail-coverts are also remarlcably elongated, curved, and decomposed' 
so as to form an elegant tuft upon the rump. Tin's bird is found in Guiana, wliere it frequents tlic 
rocky shores of the streams; hence its common name. It forms a nest of fragments of wood and 
dry grass in the holes of tlie rocks, and lays two white eggs. A second species, R. Peruviana^ 
also of a bright orange color, bas been found in Peru and Mexico. 
Genus CALYPTOMENA : Ccdypiomena.— 
This includes the Green Caltptomena, C.viritUs^ 
of the color of the green leaves among which it 
lives, and therefore seldom seen ; found in Java 
and Sumatra. 
Other species of Pipriiue are South American, 
and much smaller birds ; the Calyptura cristata^ 
is red, olive, and yellow ; size of a sparrow : tbe 
Pipra strigilata^ bas the bead bright red and upper 
parts green ; size of a wren : P. aureola^ of the same 
size; color red, back wings and tail black: the 
Metopia galeata^ black, head and neck red : the 
Crested Pardalotte, P. o'isiatus^ bas a red crest, 
upper parts olive-green ; three inches long ; above 
gray, undulated witb yellow ; rump, throat, and- 
breast yellow. This species lives along the borders 
of small streams that dasb down the rocks of tbc 
bigher mountains. These remote places are in- 
fested witb a gigantic kind of spider, which often 
attacks tbis little bird suddenly, with bis pois- 
onous fangs, in tbe tbroat, and it instantly tails a 
prey to tbe insidious destroyer. 
The Thick-Heads, or Pachycejyhalmce, are 
*HB QREEN CALYPTOAiEKA, 
