NATURAL SCIENCES OF PHILADELPHIA. SI 



Adults in fine plumage, from the Camma, the same species as formerly, re- 

 ceived in Mr. Duchaillu's collection from the River Muni, and identical with 

 South African specimens. The species from Madagascar, which is Polyboroidet 

 radiatus, (Scopoli,) and the same as Falco gymnogenys, Temm., is smaller and 

 lighter colored, and has the transverse stripes on the abdomen much less nu- 

 merous and wider apart than in the present bird. 



3. Haliaetos vocifeb, (Daudin.) 



Falco vocifer, Daud. Traite d'Orn, ii. p. 65. 



Le Vaill., Ois. d'Afr., i. pi. 4. 

 From the Camma. Identical with South African specimens. 



4. Haliaetus blagrus, (Daudin.) 



Falco blagrus, Daud. Traite d'Orn, ii. p. 70. 



Le Vaill., Ois. d'Afr. pi. 5. 



The synonymes given by authors for this species are rather extended, and i 

 suspect not entirely correct; in fact, perhaps, making a heavy draft on proba- 

 bility. At present I regard F. blagrus as a distinct and well characterized spe- 

 cies. From the Ogobai, and identical with others from South Africa. 



5. Spizaetos coronatus, (Linnseus.) 



Falco coronatus, Linn. Syst. Nat., i. p. 124 (1766.) 

 Falco albescens, Daud. Traite d'Orn. ii. p. 45. 

 Edwards' Birds, v. pi. 224. Le Vaill Ois. d'Afr., i. pi. 3. Smith, 111. S. Afr. 

 Birds, pi. 40, 41. Identical with specimens in the Acad. Mus., from South 

 Africa, and in adult plumage. From the Ogabai river. 



6. Spizaetus occipitalis, (Daudin.) 



Falco occipitalis, Daud. Traite d'Orn., ii. p. 40. 

 Le Vail, Ois. d'Afr. i. pi. 2. 

 From the Ogabai river. Adults in black plumage. 



7. Spiloenis bacha, (Daudin.) 



Falco bacha, Daudin. 



Falco albidus, Cuvier. 



Circaetus melanotis, Verreaux in Hartl. Orn. W. Afr. p. 7 ? 



Le Vaill, Ois. d'Afr., i. pi. 15. Temm. PI. Col., i. pi. 19. 



The present specimen is in very light colored plumage, undoubtedly young, and 

 much as described and figured by Cuvier and Temminck, as above cited. It is, 

 however, quite identical with the bacha of Southern Africa, of which a very 

 complete series of specimens is in the Academy's Museum. The young is 

 nearly white, though even when fully grown and in a more advanced plumage 

 has the head white, and a large spot of black in the region of the eye and ear. 

 In the last plumage I suspect this bird is the species recently described by our 

 friend, Mr. Verreaux, of Paris, as cited above. 



Young % . Upper part3 white, tinged with yellow, every feather with a sub- 

 terminal spot of dark brown ; lanceolate and ovate on the head and neck ; 

 larger and more circular on the back ; every feather narrowly tipped with 

 white. Under paits white, with a few spear-heads of brownish black on the 

 breast and sides. Quills and superior wing coverts dark brown ; all the quills 

 and every feather of the coverts tipped with white ; tail ashy brown, with about 

 six transverse bands of black, and tipped with white. Total length 23 inches r 

 wing 12 ; tail 10 inches. 



Hab. Ogobai river, a branch of the Camma river, Western Africa. 



8. Accipiter Toussenelli, (Verreaux.) 



Nisus Toussenelli, Verr. Cab. Jour. iii. p. 101. 

 Very fine specimens of this handsome Hawk, are now for the first time gent 

 by Mr. Duchaillu. From the Ogobai. 



9. Accipiter Hartlaobii, (Verreaux.) 



Nisus Hartlaubii, J. Verr. in Hartl. Orn. West Af. p. 15, 



1859.] 



