ooo Recent Literature. [jJly 



specimens of this curious Nightjar only during March and July. Sus- 

 pecting that these records might indicate a migration he has recently made 

 a thorough study of the published records of the species and finds his sur- 

 mise to be correct. 



All the breeding records of Cosmetornis (September- January) are in 

 southern Africa below the Equatorial forest, while all records from March 

 to July are from the more or less open country north of the forest. We 

 thus have a regular migration across the equator of a distinctly tropical 

 bird, which is obviously different in origin from the great movement of 

 migratory species in the north temperate and arctic regions. 



As a possible incentive, Mr. Chapin suggests the great abundance of 

 flying termites in the grasslands north of the forest from April to August. 

 These " white ants " are eagerly devoured by the Nightjars which gather in 

 large flocks to catch them. Mr. Chapin seems to have worked out his 

 problem convincingly and his paper is one of much interest. — W. S. 



Bangs on Birds from the Cayman Islands.' — A complete collection 

 of the resident birds of the three Cayman Islands, recently obtained by 

 Mr. W. W. Brown and now the property of the Museum of Comparative 

 Zoology, forms the basis of a paper by Mr. Bangs. Thirty-seven forms are 

 listed of which Amazona levcocephala hesterna (p. 308), Cayman Brae, is 

 described as new. Many notes on the plumage and relationship of the 

 various species are given and a review of the races of Tiaris olivacea. The 

 paper forms a valuable contribution to West Indian Ornithology. — W. S. 



Cherrie on New South American Birds. ^ — Of the four hundred odd 

 species of birds secured on the Roosevelt South American Expedition some 

 naturally proved to be new, and these Mr. Cherrie has carefully described 

 in the present paper. They are as follows: Choetura chapmani viridipennis 

 (p. 183), Doze Octobre; Celeus roosevelti (p. 183), Tapirapoan; Myrmo- 

 therula kermiti (p. 184), Barao Melgaco; Rhopoterpe torquata iragicus 

 (p. 184), Rio Roosevelt; Synallaxis rufogularis, (p. 185), Barao Melgaco; 

 PhaccUodomus ruber rubicula (p. 186), San Lorenzo River; Philydor ery- 

 throamis lyra (p. 186), Rio Roosevelt; Xiphocolaptes major saturatus 

 (p. 187), and Myiopagis nridicata rondoni (p. 188), Urucum near Corumba; 

 Sporophila hypoleuca clara (p. 188), San Lorenzo River — all from Matto 

 Grosso, Brazil. 



Picolaptes angustirostris prcedatus (p. 187), Concepcion del Uruguaj^; 

 Myosj.iza manimhe nigrostriata (p. 189), Rio Negro, Paraguayan Chaco; 

 and Thraupis pahnarum duvida (p. 90), Rio Roosevelt, Amazonia. 



1 A Collection of Birds from the Cayman Islands. By Outram Bangs. Bull. Mus. 

 Comp. Zocil., Vol. LX, No. 7, pp. 303-320. March, 1916. 



2 Some apparently undescribed Birds from the Collection of the Roosevelt South Ameri- 

 can Expedition. By George K. Cherrie. Bull. Amer. Mus. Nat. Hist., XXXV, .\rt. VIL 

 pp. 183-190. May 20, 1916. 



