Recent/;/ published Ornithological Works. 001 



Guaso Nyiro, and in other localities in the central part of 

 the Protectorate. It contains examples of 212 species, 

 one of which is believed to be new and is described by 

 Mr. Stone as Cisticola harrisuni. 



100. Thayer and Bangs on the Birds of the Pearl Islands. 



[The Mammals and Birds of the Pearl Islands, Bay of Panama. By 

 John E. Thayer and Outram Bangs. Bull. Mus. Comp. Zool. xlvi. no. 8 

 (1905).] 



The authors describe the birds collected on the Pearl 

 Islands, in the middle of the Bay of Panama, by Mr. W. 

 "W. Brown, Jr., during a second * visit in 1904-. The birds 

 are in most cases closely allied to the corresponding forms 

 of the adjacent mainland ; but one of the Humming-birds 

 (Phaethomis hyalinus) and an Ant- Wren (Formicivora alti- 

 cincta) are distinct species peculiar to these islauds. Ninety- 

 four forms are enumerated, of which two [Myiobius tuevius 

 furfurosus and Tanagra cana dilucida) are now separated as 

 " subspecies." 



101. Thayer and Bangs on the Birds of Panama. 



[Vertebrata from the Savana of Panama. Aves. lid. t. c. no. 12 

 (1906).] 



The " Thayer Expedition " of 1904 spent a month near 

 the city of Panama, and made a collection of Vertebrates on 

 the adjoining savanna. The birds obtained on this occasion 

 are referred by the authors to eighty-six species, of which 

 three are described as new — Momotus conexus, Tyrannulus 

 reguloides panamensis, and Tiaris olivacea dissita. 



102. Van Oort on the Red-crested Pochard. 



[Ueber das Vorkommen von Netta rujina (Pall.) in Holland. Von 

 Dr. E. 1). Van Oort. Notes Leyd. Mus. xxvi. pp. 196^199.] 



The author records a male of this Duck in summer 

 plumage from Nieuwkoop in South Holland, August 8th, 

 1905, being the tenth example known from that country. 



* Cf. Bangs, 'Auk,' xviii. pp. 24-32 (1901). 



