Grayson.] 272 [June 7, 



both sexes before me, in being of a darker green, as pointed out by 

 Col. Grayson, they are notably darker on the rump and upper tail 

 coverts, in the others there is a greater prevalence of a yellow shade 

 throughout the plumage ; in size and the color of the bills, they do 

 not differ materially from the two localities ; perhaps the Marias bird 

 may be considered a darker local race. 



TROGONHX2E. 



13. Trogon ambiguus Gould. "Western or Mexican Trogon . 

 Coa." 



" Although confident that this variety is peculiar to the Tres 

 Marias, yet its congener upon the main land so closely resembles it, 

 that I can scarcely perceive any specific difference in its general con- 

 tour. A bird of so feeble flight, and always inhabiting a thickly 

 wooded country, could never have passed from the main land to these 

 Islands. Nature seems to have created it there, as those upon the 

 main, with its magnificent plumage an ornament to the dark forest, 

 for which it shows the greatest preference. It is more abundant in 

 the Islands than on the main land, and more docile. 



"The natives ensnare them in the same manner as the yellow 

 headed parrot, 



"With all its resplendent dress, as is characteristic of such birds, 

 its love song is not melodious. The simple and rather hoarse repeti- 

 tion of coa, coa, coa, is heard in the spring of the year, and from this 

 note it has received its name by the natives. Most of the time it is 

 silent, remaining stationary upon the branch of a tree with its head 

 slowly turning from side to side, obviously hunting for some insect 

 concealed under a leaf or the fruit upon which it feeds. When such 

 objects are descried, it darts upon it something like the Fly-catchers. 



"Like the parrots, it nests in the hollows of tall trees ; its flight is 

 short and undulating. 



"Description of a fresh specimen. Bill pale yellow. Bare space 

 around the eye or eyelids red. The entire upper part of this species, 

 with the neck and upper part of breast, are of a rich lustrous metallic, 

 golden green, more intense on the rump, with occasionally coppery 

 reflections, especially on the scapulars. 



"The forehead, sides of head, chin and throat are dull black, with 

 (in some lights) a greenish shade. 



"The wing coverts are finely mottled black and white. The quills 

 dark brown, with the outer webs edged with white. The entire 



