454 NATURAL HISTORY OF BIRDS. 



Beside a delicate whistle it emits no sound. Pterophanes temminckii has a flight 

 very similar to the last species, and moves the wings slowly showing the blue coloring 

 to great effect. It has been observed at elevations of 13,000 to 14,000 feet where 

 there are no flowers, sweeping along the grass searching for insects. The skin has a 

 musky smell, strongest when the bird is in the flesh. Once one was observed to 

 attack a large hawk and drive it away from its feeding grounds. 



Heliodoxa, Lampraster, Eugenia, Urochroa, Eugenes, Sternoclyta, lolcema, Clyto- 

 Icema, and Phoeolcema are a group of genera with species more or less related to each 

 other. They are generally birds of large size, many of very brilliant coloration, with 

 rather long stout bills, and, as a rule, with the feathers of the forehead projecting onto 

 the culmen and covering the nostrils. lol&ma whitelyana is a very fine species with 

 all the upper surface deep grass-green, and a glittering spot on the forehead. The 

 under parts are jet black, save a broad band of violet on the throat. It is found at 

 Cosnipato, Peru, and frequents the flowering plants at the tops of the highest trees in 

 the depths of the forest, keeping nearly always out of gun-shot. It has a very power- 

 ful flight, and goes from flower to flower with wonderful rapidity. Another more 

 beautiful bird is Eugenia imperatrix, from Ecuador, with the forehead and chin bril- 

 liant metallic gi'een, upper parts grass-green, exceedingly luminous when viewed from 

 behind, and a metallic violet spot on the throat. This handsome bird inhabits the 

 thick forests at about four thousand feet of elevation, and feeds from the beautiful 

 flowers of an Alstrcemeria, which hang from the extremity of this twining plant. 

 The genus Panoplites contains three species clothed in brilliant metallic colors, agree- 

 ing in having their upper parts green, but their under parts are clothed in strongly 

 contrasted colors of diverse hues. Perhaps the most brilliant of the species is P. 

 jardini, from Ecuador, with the crown and under parts shining violet blue, and the 

 upper parts metallic bluish-green. The .P. matthewsi is very different, having the 

 under parts deep chestnut-red, and upper parts metallic golden-green. This is said to 

 be a most pugnacious species, and when an individual alights upon a tree he will not 

 permit any other humming-bird to approach the flowers upon it. They hurl them- 

 selves against each other in the air like cocks, and pursue all others of the tribe in 

 their vicinity. It is met with as high as 10,000 feet above the sea, and its flight is 

 short, the bird frequently perching. 



Petasophora includes another small group of very different appearance from the 

 last. Of rather large size, and greatly resembling each other in plumage, the species 

 are distinguished by their metallic-blue ear-coverts, metallic-green scale-like breasts, 

 and broad bluish-green barred tails. The P. anais feeds upon insects which it seizes 

 in the air, in the most agile manner, snatching them in all directions, executing at the 

 same time most graceful movements. At times it launches itself into the air from its 

 perch, sings a short simple song, and returns like an arrow to its original position, 

 repeating this several times but always returning to this same place. It lives at alti- 

 tudes varying between 5,000 and 9,000 feet. Two birds with pure white tails tipped 

 with purplish-brown form the genus Florisuga. In general form they resemble the 

 next genus, Chalybura, the members of which differ from all known humming-birds 

 by the great development of their plume-like under tail-coverts, which peculiarity 

 exists in both sexes. The males are clothed in green, most luminous on the lower 

 surface, one species being an exception, and having this part blue. The lower tail- 

 coverts are white except in one species which has them black. They are natives of 

 Central America, Venezuela, and Columbia. 



