TANAGRIDiS — THK TANAGERS. 445 



diflereiit from the throat, and abruptly lighter than the back, which, with the wings 

 and tail, is of a much lighter dusky-red than in cnstiva ; exposed tij)s of primaries pure 

 slaty-umber, primaries fiiintly margined terminally with paler (in the type, this char- 

 acter is not apparent, owing to the feathers being somewhat worn; in other specimens, 

 however, it is quite a noticeable feature, although possibly not to be entirely relied on). 

 Female. Above orange-olivaceous, beneath more light yellowish, purest medially; cris- 

 sum richer yellow than other lower parts, being in some individuals (young males?) 

 intense Indian-yellow, with the inner webs of the tail-feathers margined with the same ; 

 quite distinct lino of orange-yellow over the lores. 



Hab. Upper Rio Grande and Colorado region of Southern Middle Province; south, in 

 winter, along Pacific coast of Mexico as far as Colima. 



This bird, quite different from Eastern ccstiva, is, however, proliahly only a 

 representative form of the same species in the Colorado and Ujiper liio 

 Grande region, migrating soiitli in winter, through "Western Mexico to 

 Colima, as specimens from Texas and Middle Mexico apjjear to be quite 

 intermediate, at least in form. 



Habits. This is a new form, whose claim to distinctness was first made 

 known by Mr. Eidgway, in 1869. In appearance, it most resembles the P. 

 estiva, but is larger. It has been found in the Middle Province of the United 

 States, from Fort Mohave at the north, to Colima and Mazatlan in Mexico. 



Dr. Cooper found this bird quite common near Fort IVIohave, after April 

 25, in the Colorado Valley, latitude 35°. They chiefly frequented the tall 

 Cottonwood, feeding on insects, and occa.sionally flew down to the Larrca 

 bushes after a kind of bee found on them. He states also that they have 

 a call-note sounding like the words lie-dih, which, in the language of the 

 Mojave Indians, signifies " come here." They sing in a loud, clear tone, and 

 in a style much like that of the liobin, but with a power of ventriloquism 

 which makes the sound appear much more distant tlian it really is. The 

 only specimens of this species known to have been obtained in the United 

 States were taken at Los Finos, New Mexico, by Dr. Coues, and at Fort 

 Mohave by Dr. Cooper. Other specimens have been procured from Western 

 Mexico. 



