436 CORACIIFORMES CHAP. 
Docimastes ensifer of Colombia and Ecuador, which has a straight 
bill, longer than the head and body together, is coppery-green, 
with black cheeks and throat, and glittering green breast; the 
last being green and white in the hen. Morisuga mellivora, the 
Jacobin, occurring from South Mexico to Amazonia, is green, 
with the head and entire neck blue, the base of the hind-neck, 
the abdomen, and the middle of the lateral rectrices white. The 
female is chiefly green, varied with white below.  Zopaza pella, 
the “Crimson Topaz” or “King Humming-bird” of Guiana, is 
golden-red above, with greenish-orange rump, dark purple and 
cinnamon wings, and rufous lateral rectrices. The two median 
tail-feathers are bronzy with black tips; the next pair, which are 
elongated and curve outwards, are purplish-black ; the throat is 
lustrous golden ; the narrow pectoral band is black ; the remaining 
lower parts are crimson. The hen is grass-green, with crimson on 
the throat, and black and cinnamon on the outer tail-feathers. 
The nest has been stated to be made of a fungus, and certainly 
the appearance justifies the assertion; but Dr. Paul, a great 
authority on Fungi, writes of an example which he brought home 
for the author from the Pomeroon river :—‘“ The felt 1s formed of 
the fluff which clothes the young flower-spathes of the Kokerite 
Palm (Maximiliana martiana),” and his evidence ought to settle 
the question. 7. pyra, of the Rio Negro and Eastern Ecuador, 
is redder above, with no cinnamon on the wings or lateral 
rectrices. The genus Oreotrochilus, and the four next succeed- 
ing, have particularly strong feet. In common with some half 
a dozen congeners which range southwards to Chih, 0. pichincha 
of Ecuador inhabits the cloudy regions of the Andes near the 
snow-line; it is olive-green above, and has an entirely violet- 
blue head and throat, the latter being followed by a black lne 
and white lower parts, while the lateral tail-feathers are steel- 
blue and white. The female is green above, ashy and white 
below. Ovreonympha nobilis of Peru, which has a peculiar habit 
of suddenly stopping in its flight, 1s a large bird with somewhat 
forking rectrices. The main colour is bronzy-brown, with a 
blue crown divided in the centre by a brown bar; the black 
of the cheeks runs to a point below; the chin is green and the 
“beard ” crimson ; the lower parts are greyish-white; the tail has 
the external pair of feathers white. The hen has a brown 
and greenish crown and a black throat. Oxypogon guerini of 
