I. 



ADDITIONS AND COURKCTIONS. 



DuRlxo the consideiuble interval of time since the printing of tliis work 

 was commenced, many additional facts have come to light in°ri-ard to tliu 

 habits and geograi)hical distribution of the land birds of Xorth America ; 

 andwliile several so-called siiecies.have jiroved to be mere races, or even' 

 of less rank, some others have I)een added to tlie list. The more important 

 of these are herewitli subjoined. 



Most of the new facts here announced are the results of the more recent 

 labors of Cai)tain Charles P.endire, First Caval-y, U. S. A,, and of Messrs. 

 J. A. Allen, C. E. Aiken, Dr. E. Coucs, H. W. llenshaw, .Air. C. J. Maynard, 

 and others, whose names are mentioned in their appropriate i)laces. 



Turdus paUasi, van nanus (I, 20). Dr. Cooper has sent to the Sniitlisonian 

 Institution skins of his T. iiainis, and tlicy prove to be T. ustu/afii.'<. 'I'lic snniiiso 

 expressed on page 21, tliat tlio nest and eggs descrll)cd by Dr. Cooper as those of 

 the former in reahty belonged to the latter species, is tluis undoubtedly correct. 



Turdus pallasi, var. auduboni (I, 21). A nest with the eggs (S. I. 1(J,.'?l'()) 

 of this species was taken near Fort Ellis, Montana, July Ifi, 1872, by C. tf.'.Mer- 

 riam, attached to Dr. Hayden's ])arty. Tlic nest is large and bulky for the size 

 of the bird, is dccjjly saueer-sliaped in form, measuring G inches' in external 

 diameter by 3 in depth. The cavity of the nest is 3 inches in (Hamcter by about 

 1.75 deep. It is composed entirely of green mosses and lined witli fine grass 

 leaves. 



The eggs were three in number, in shape broadly ovate and oljtusely rounded 

 at either end. They measure .85 of an inch in length by .72 in breadth ; their 

 color is a rather deep greenish-liluc, almost exactly like those of rimliis mhjmtorius. 



The nest was built in a small pine-tree, about eiglit feet from the ground, in the 

 pine regions of the mountains. In its position it differs from any now known 

 of the Turdus pnllasi, which, so far as known, builds invariably on the gi'ound. 



Harporhynchus OceUatus (I, 30). This is probably a Mexican form of 

 //. citiereus. 



