IIG REPORT OF ASSISTANT DIRECTOR OF NATIONAL MUSEUM. 



EiDGWAY, Egbert. — On Amazilia yucatanensis (Cabot) and A. cer^in- 

 iventris, Gould. 



(Proc. U. S. Nat. Mus., 1881, iv, pp. 25,26.) 



A recent authority on the Humming-birds having united the above-named 

 species, and the editors of "The Ibis" having suggested that an actual com- 

 parison of the two " would, be satisfactory," the type specimen of the former 

 ■was borrowed for the purpose fi-oni its collector and owner, Dr. Samiiel Cabot, 

 jr., of Boston, From this actual comparison of the two, the author was en- 

 abled to establish their distinctness from each another. 



r— A Hawk new to the United Statep. 



(Forest and Stream, Apr. 14, 1881, vol. xvi, p. 206.) 

 Announcement of the capture o£ B'Uteo fuUginosus, Scl., in Florida. 



Southern Eangeof the Eaven on the Atlantic Coast of the United 



States. 



(Bull. Nutt. Orn. Club, April, 1881, vi, p. 118.) 



The southern limit of the Raven along the Atlantic sea-board, as previously 

 recorded, was the coast of New Jersey; but the known range of the species 

 was considerably extended by the observations of the author, who, while en- 

 gaged in an exploration under the auspices of the National Museum, found it 

 , to be not uncommienon the islands near Cape Charles, Virginia. 



An unaccountable migration of the Eed-headed Woodpecker. 



(Bull. Nutt. Oru. Club, April, 1881, vi, pp. 120-122.) 



In the autumn of 1879, this species (Melanerjjes erythrocephalus), which 

 is ordinarily, and especially in winter, the most abundant of the Wood- 

 peckers in Southern Illinois, made a general migration, and did not reappear 

 nntil the following spring. The cause of this disappearance was not apparent, 

 since every other species of the family (six in niimber) were normally abund- 

 ant. 



The Caspian Tern in California. 



(Bull. Nutt. Orn. Club, April, 1881, vi, 124.) 



A notice of two specimens of Sterna (or Sylochelidon) caspia from California, 

 in, the collection of the National Museum, being the first record of this species 

 from the Pacific coast of America. 



A Eevised Catalogue of the Birds Ascertained to Occur in 



Illinois. 



(Bull. Illinois State Laboratory of Nat. Hist., May, 1881, No. 4, pp. 163-208.) 

 This catatogue (of 341 species) is based very largely upon collections made 

 by the author at Mt. Carmel and in the vicinity of Olney, Illinois, and de- 

 posited in the U. S. National Museum. 



A critical Eeview of the Genus Centurus, Swainspn. 



(Proc. U. S. N. M., iv, pp. 93-119.) 



On a Tropical American Hawk to be added to the North Anaeri- 



cap Fauna 



(Bull. Nutt. Orn. Club, Oct. 1881, vi, pp. 207-214.) 

 Based upon two specimens, in the collection of the National Museum, of 

 Buleo hraclnjnrus Vieill. from Palatka, Florida (G. A. Bordman), and. B.fuUgi- 

 noaus Scl. fi'om Oyster Bay, Florida (W. S. Crawford). 



