118 [June, 



Descriptions of New Birds collected between Albuquerque, N. M., and San 

 Francisco, California, during the Winter of 1853 54, by Dr. C. B. R. Kennerly 

 and H. B. Mollhausen, naturalists attached to the survey of the Pacific R. R. 

 Route, under Lt. A. W. Whipple. 



By S. F. Baird. 



Cypselus melanoleucus, Baird. 



Above dark sooty brown all over, except a white band on the wing, formed 

 by the tips of the secondary quills, and a white patch on the side of the body 

 opposite the rump, and extending round so as to be separated on the rump by a 

 space of about one third of an inch. Beneath white, except the under surface of 

 the wings and tail, the sides of the body, crissum and under wing and tail coverts, 

 which are glossy soot black, leaving but a narrow interval of white down the 

 breast and belly. There may be a narrow black, pectoral collar. There is a 

 narrow light edging to the outer primary quill. 



Total length 5 inches and 8-10ths, wing 5 4-10ths, tail 2 8-10ths, tarsus 3-10ths. 



(No. 169.) Camp 123, west of San Francisco Mountains. 



Ctjlicivora plumbea, Baird. 



Above bluish grey ; beneath white. Front uniform with the crown ; eyelids 

 white, and over the eye a narrow greyish white stripe, within which is another 

 of bluish black, partially concealed by the feathers. Quills all edged with lighter. 

 Tail feathers all black ; the entire outer webs and tips of the two exterior white, 

 the third narrowly margined and tipped with the same. Bill short. Tail con- 

 siderably rounded. 



Total length 4 inches and 4-10ths, wing 1 9-10ths, tail 2, bill from front 4-lOths, 

 tarsus 6-10ths. 



Differs from C. ccerulea in shorter bill and more rounded tail, the outer 

 feathers of which are not white but nearly black. The black frontlet is also 

 wanting. Differs from C. atricapilla in absence of black on the top of the head, 

 this being replaced by a dark stripe on the side. Mr. Lawrence describes the C 

 atricapilla as having the outer web only of the lateral tail feathers white, but 

 Bonaparte states the whole feathers to be white. 



Bill-Williams' Fork, Feb. 1854. 



Psaltria plumbea, Baird. 



Upper parts bluish grey, including the crown ; beneath dirty white or brown- 

 ish white ; cheeks, throat, and forehead tinged with light brown ; outer margins 

 of all the quills and tail feathers like the back, but brighter (excepting on the 

 two outer primaries.) Bill and feet black. 



Length 4 inches, wing 2 i-10ths, tail 2 4'j-lOths, tarsus 7-10ths. 



Compared with specimens from California of P. minima, this species differs 

 in having the top of the head uniform with the back ; the whole dimensions 

 larger, and the bill smaller and more delicate. 



Hab. Little Colorado, N. M. 



Cyanocitta macrolopha, Baird. 



General appearance that of C. stelleri. Tail rounded. Head with a very long 

 pointed crest, the longest feathers about twice the length of the bill*. Head and 

 upper part of the neck all round, clear sooty black ; crest glossy, greenish black. 

 Whole back and scapulars and thighs brownish ash, with a slight' gloss of green. 

 Rump, upper tailcoverts, sides and whole under parts light cobalt blue. Tail 

 and exposed surfaces of the secondaries and tertiaries ultramarine blue ; outer 

 webs of primaries more like the rump. Tail feathers, tertiaries and outer webs 

 of secondaries distinctly barred with black. The short elongated pointed exte- 

 rior feathers of the forehead streaked with opaque greenish white, turning to 

 greenish on those more posterior ; over the eye on the eyelids, a row of silky 

 white feathers. 



Length 12i inches, wing 6, tail 5|. 



This bird is figured in Fauna Boreali Americana, Birds pi. 54. 



