1855.] 283 



their bases, and with partially concealed transverse bands of white, quills very 

 dark brown (nearly black,) with the inner webs dark cinereous barred with 

 brown, tail above ashy brown, all the feathers white at base, and having; about 

 ten transverse bands of dark brown, outer feathers (of the tail) ashy white on 

 their inner webs, tail beneath silky ashy white, with a bronzed yellowish olive 

 lustre. 



Behind and under the eye a stripe of rufous brown. Under parts pale yellow- 

 ish white, throat with lines and narrow stripes of brownish black, and on other 

 under parts every feather with a large lanceolate, circuiar or cordate spot of 

 dark brown, some feathers on the flanks and sides having also some irregular 

 transverse bands of the same color. Nearly all the feathers on the under parts 

 with lines of dark brown on their shafts. 



Quills with their inner webs on the under surface of the wing grayish or dark 

 ashy, and near the shafts with a bronzed olive lustre ; shafts white (on the under 

 surface.) Inferior wing coverts white with arrow heads of dark brown. Tibial 

 feathers yellowish white, tinged with rufous, and having irregular transverse bars 

 of dark brown. 



Adult, black? 



Hab. New Mexico. Discovered by T. Charlton Henry, M.D., U. S. Army. 



The specimen now described is the young of a species the adult of which is as 

 yet unknown. It is about the size of B. pennsylvanlcux^ with the wings and 

 legs much longer and the bill also somewhat longer. The colors, too, are dif- 

 ferent, and in the present bird the dark cinereous of the inner webs of the quills 

 and the bronzed or silky olive lustre on their inferior surfaces are especially re- 

 markable. The exposed edges and ends of some of the secondaries in the pre- 

 sent specimen have a distinct purple lustre. I suspect that the adult of this 

 bird is black. 



This bird is in the valuable collection made by T. C. Henry, M.D., U. S. 

 Army, and is from the vicinity of Fort Webster, New Mexico. 



17. Archibuteo lagopus, (Gmelin.) 



A specimen is in Dr. Cooper's collection from Shoalwater Bay, Washington 

 Territory, and another is in Dr. Kennerly's collection from the River Zuni in 

 Hew Mexico. 



18. Archibuteo ferrugineus, (Licht.) 



Specimens of adults and young birds in Dr. Heermann's collection.* 



19. Elanus leucurus, (Vieill.) 



Specimens from near San Francisco, California, in a collection made by Mr. 

 R. D. Cutts. 



20. Circus hudsomus, (Linn.) 



Specimens from Minnesota Territory are in Dr. Suckley's collection, from 

 Utah Territory in Mr. Kreutzfeldt's, from New Mexico,|in Capt. Pope's, Lieut. 

 Whipple's and Dr. Henry's, and from Tamaulipas, Mexico, in Lieut. Couch's 

 collection. 



21. Aqutt.a chrysaetos, (Linn.) 



In Dr. Henry's collection from New Mexico. 



22. Haliaeths albicilla, (Linn.) 



In the collection from Greenland there is a fine specimen of this bird. We 

 notice no material difference between it and others from various European lo- 

 calities. 



23. Haliaetus leucocephalu?, (Linn.) 



Dr. Cooper's collection contains a specimen in immature plumage, which was 

 obtained at Shoalwater Bay, Washington Territory. 



* As probably belonging to the Buteonida, we may mention here that the fol- 

 lowing species is in Lieut. Couch's collection, and having been obtained by him 

 in the northern part of the State of New Leon, Mexico, may be expected to occur 

 in Texas : 



1. Asturina cinerea, Vieill. Gal. des Ois. i. pi. 20. 



