1919-] Ecuador, Peru, Bolivia, and Argentina. 259 



Larus franklini. 



Lorus franklini Richardson, Faun. Bor.-Amer. 1831,' 

 p. 424, p]. 71: Saskatchewan; Tacz. Orn. Per. iii. 1886, 

 p. 451 : Lima ; Chorillos ; Payta. 



Nos. 1613, 1614. ? imm. Callao, Peru^ 10 metres, 

 10 Jan. 1900. " Gaviata.^' 



These two birds, which are in immature plumage, have 

 the head and sides of the face black intermixed with white — 

 the white much more extensive on the forehead, lores, and 

 fore part of the cheeks ; the tails are grey with a brown 

 subterminal band. 



Larus cirrhocephalus. 



Larus cirrhocephalus Vieill. N. Diet, d' Hist. Nat. xxi. 

 1818, p. 502: Bresil; Tacz. Orn. Per. iii. 1886, p. 455: 

 Payta ; Lima. 



No. 1203. S ' >^ten, N.W. Peru, 15 metres, 16 Sept. 

 1899. "Gaviata." 



Larus maculipennis. 



Larus maculipennis Licht. Verz. Doubl. 1823, p. 83: 

 Monte Video ; Sclater & Hudson, Argent. Orn. ii. 1889, 

 p. 198. 



a. S imm. Papin, Bonifacio, Argentina, 18 April, 

 1916. 



This bird, which is slightly immature^ was collected by 

 Mr. Robin Kemp. 



Larus modestus. 



Larus modestus Tschudi, Arch. fUr Naturg. 1843, i. 

 p. 389 : coast of Peru ; Tacz. Orn. Per. iii. 1886, p. 449. 



No. 3. S- Trujillo, N.W. Peru, 13 March, 1912. 

 "Iris brown, bill and feet black" (Brabourne). 



This specimen, which is in immature plumage, was 

 collected by the late Lord Brabourne and presented by 

 him to the British Museum. 



