137 
DUTCHESS OF RIVOLI’S HUMMING-BIRD. 
Trochilus Anna Lesson. 
Plate VI. 
Oiscau-mouclic Anna, Ornismya Anna, Lesson , Histoire Wdtii~ 
relle des Oiseaux-mouches , pi. lxxiv. 
This very beautiful species is said by M. Lesson to 
be entirely new and unfigured, and he has dedicated it 
to the Dutchess of Rivoli, (using her Christian name,) 
whom, with her husband, he has extolled as enthusias- 
tic naturalists. It was discovered in California, by 
Dr Botta, and introduced in 1829 to the Paris collec- 
tions, but without any notice of its habits. 
This bird is about three inches and five lines in 
length. The wings, equaling the length of the tail, 
are of a purplish brown. The tail, very slightly forked, 
is brown, except the centre feathers, which are green, 
with metallic lustre. But the most marked feature 
in the colouring of the plumage is a cowl, of the richest 
changeable amethystine red, which covers the upper 
part of the head, and with a more purplish tinge sur- 
rounds the eyes, covering the cheeks, and continued 
VOL. VI. T 
