1853.) 453 
3. Haliaétus albicilla, (Linn.) Gould. B. of Eur., i., pl. 10. 
Vultur albicilla, Linn. Syst. Nat. i., p. 123, (1766). 
Hab. Northern North America, Greenland. 
4. Haliaétus leucocephalus, (Linn.) Wilson. Am. Orn., iv., pl. 36. Aud. B. 
of Am., pl. 31, 126. 
Falco leucocephalus, Linn. Syst. Nat., i., p. 124, (1766). 
Hab. Throughout North America. 
3. Genus Panpion, Savigny. 
1. Pandion carolinensis, (Gmelin.) Wilson Am. Orn., v., pl. 37, fig. 1. Aud. 
B. of Am., pl. 81. e 
Falco carolinensis, Gm. Syst. Nat. i., p. 371, (1788). 
Hab. Throughout North America. 
4. Genus Poryzorus, Vieillot. 
1. Polyborus brasiliensis, (Gmelin.) Aud. B. of Am., pl. 161. 
Falco brasiliensis, Gm. Syst. Nat., i., p. 262, (1788). 
Hab. Southern North America, Texas, Mexico. 
5. Genus Morpunus, Cuvier. 
1. Morphnus unicinctus, (Temminck.) Aud. B. of Am., pl. 392. 
Falco unicinctus, Temm. Pl. Col.,i., p. (liv. 53, about 1827.) 
Falco Harrisii, Aud. Orn. Biog., v., p. 30, (1839). 
Hab. Southern North America, Texas, Mexico. 
Obs.—The above comprise all the species which have been well established 
as occurring within that portion of North America which is north of Mexico. Of 
these species several are of exceedingly rare occurrence, but the greater part are 
of sufficient abundance to be readily studied by the ornithologist or obtained by 
the collector, and of all of them there are specimens in the collection of the 
Academy. Of Buteo Harlani there is one specimen which, when in the Rivoli 
collection, was pronounced to be that species by Mr. Audubon, but which does 
not correspond with his plate and description so well as other specimens of a 
different species from Mexico, now in the collection, and of this species alone 
have I doubts about tne correct name. It is in all probability a common Mexi- 
can bird, though whether previously described or not I am not at present pre- 
pared to say. 
The object of this synopsis being mainly to give the correct nomenclature and 
date of original description, the numerous synonymes of North American 
Falconide have been omitted, though they will be carefully inserted in my 
Synopsis in Birds of California and Texas, parts 3 and 4. 
In addition to the above species, there are in the collection of the Academy 
several specimens, principally western and northern, which have been referred 
with doubt to known species, but which I hope to further examine with the ad- 
vantage of other collections from the same localities. 
The Recording Secretary read his Annual Report, as follows :— 
REPORT 
OF THE RECORDING SECRETARY 
For 1853. 
During the past year, from Dec. 1, 1852, to Dec. 1, 1853, there have been 
elected fifty-one Members and eleven Correspondents. 
Four members have died, to wit: Prof. W. E. Horner, M. D., Mr. Francis 
Lennig, John Price Wetherill, late Vice-President of the Academy, and Mr. 
Richard H. Kern, who was killed a few months since by the Indians, at the 
time of the massacre of Captain Gunnison’s party, on the Sevier river. 
