12 8 ZOOLOGY OF THE VOYAGE OF THE BEAGLE. 



3. HlATICULA SEMIPALMATA. G. R. Gray. 



Tringa semipalmata, Temm. 



Charadrius semipalmatus, Caup. Isis. 1825, p. 1375, t. 14. Wagl. Syst. Av. sp. 23. 

 Bonap. Am. Orn. iv. pi. 25, f. 4. 



Galapagos Archipelago. 



HiEMAiopus palliatus. Temm. 

 Rio Plata. 



Egretta leuce. Bonap. 



Ardea Leuco, 111. 



Ardea Egretta, Wils. Am. Orn. pi. 61, f. 4. 



My specimen was procured at Maldonado. I saw it also in Patagonia. 



Ardea herodias. Linn. 

 Galapagos Archipelago. Frequents the sea-coast and salt-lagoons. There 

 are no fresh water pools in any of these islands. 



1. Nycticorax violaceus. Bonap. 



Ardea violacea, Linn. 



Ardea callocephala, Wagl. Syst. Av. 



Mr. G. R. Gray has thought it advisable to give the following description of 

 this specimen, from the Gallapagos Archipelago. It appears to be a young bird, 

 and is small in all its dimensions. 



Upper part blackish-grey ; each feather marked down the middle with a broad 

 stripe of black, and tinged on the margins with shining bronze-brown ; 

 beneath the body blueish-grey, with the front of the neck, top of the head, 

 and margins of the feathers on the thighs rufous ; the sides of the head and 

 throat deep black, the former divided in the middle on each side with a patch 

 of white ; the bill black, and feet of a pale reddish colour. 



2. Nycticorax americanus. Bonap. 



Ardea nycticorax, Wils. (young bird.) 



Valparaiso, Chile. 



Theristicus melanops. Wagl. 



Ibis melanops, Lath. Hist. ix. pi. 150. 



This bird frequents the desert gravelly plains of Patagonia, as far south as 

 lat. 48° : in the British Museum there are specimens which Captain Clapperton 

 brought from central Africa ; so that this bird has an extraordinarily wide range. 

 It generally lives in pairs, but during part of the year in small flocks. Its cry 

 is very singular and loud : when it is heard at a distance it closely resembles the 

 neighing of the guanaco. I opened the stomach of two specimens, and found in 

 them remains of lizards, cicadas, and scorpions. It builds in rocky cliffs on the 



