9 
Recent Literature. 4 1 
down to include most of those which appeared in the first half of the year 
1879. We are pleased to learn that a third instalment of the Bibliography, 
giving the “Systematic Publications ” relating to the ornithology of all 
America, is in press, and may be shortly expected. Of the laborious re- 
search and care displayed in the preparation of this work, too great praise 
can scarcely be accorded. 
Dr. Coues has also recently published a partial bibliography ot what is 
commonly termed the “ Sparrow- War in America,” * * * § in which are given the 
titles of most of the papers relating to this troublesome question, usually 
with a short digest of the papers mentioned. It is confessedly “very 
incomplete,” being “ a portion of a more elaborate article,” which the 
author is preparing on this subject. — J. A. A. 
Ridgway on the Species of the Genera Scops and Tyrannus, 
etc. — The Proceedings of the United States National Museum, for 
1878, recently issued, contain several papers by Mr. Ridgway on Amer- 
ican Birds, in addition to those noticed in previous numbers of the 
Bulletin. These include a new species of Humming-bird, f of the genus 
Atthis, from Guatemala, allied to A. heloisce , and hitherto confounded with 
it ; a revision of the American species of the genus Scops ; J new species 
and geographical races of birds in the National Museum ; § and a synopsis 
of the genus Tyrannus . || Mr. Ridgway recognizes seven American spe- 
cies of the genus Scops , two of them running into a number of geograph- 
ical races or subspecies. These are, — 1 . Scops nudipes ; 2. S. brasilianus, 
with varieties a. brasilianus , ft. atricapillus , y. ustus , 8. guatemalce, e. cassini , 
the last new ; 3. S. barbarus ; 4. S. jlammeolus ; 5. S. asio , with varieties 
a. asio. ft. maccalli,y. kennicotti, 8. floridanus, e. maxwellice ; 6. S. trichopsis; 
7. S. cooperi , Ridgw. sp. nov. Each is described in detail, with full synon- 
ymy and comparative diagnoses. In the second above-cited paper, a new 
variety of Rhodinocichla rosea (ft. schist acea, Ridgw.) is described from 
W estern Mexico ; two new varieties of Embernagra rujioirgata ( ft . crassi- 
* On the Present Status of Passer domesticus in America, with Special Refer- 
ence to the Western States and Territories. Ibid., pp. 175 - 193. Sept. 6, 1870. 
t On a new Humming-bird (Atthis ellioti) from Guatemala. By Robert 
Ridgway. Proc. U. S. National Museum, 1878, pp. 8-10. 
X A Review of the American Species of the Genus Scojis, Savigny. Ibid., pp. 
85-117. 
§ Description of Several New Species and Geographical Races of Birds Con- 
tained in the Collection of the United States National Museum. Ibid., ^>p. 
247-252. 
Descriptions of Two New Species of Birds from Costa Rica, and Notes on 
other Rare Species from that Country. Ibid., pp. 252-255. 
II Descriptions of New Species and Races of American Birds, including a 
Synopsis of the Genus Tyrannus , Cuvier. Ibid., pp. 466-486. 
