826 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



M. J. Nicholl says : " This handsome Thrush was not common when we 

 were in the Straits. I met with only three individuals, and saw none until 

 we got to the extreme west of the Straits. It utters a low plaintive whistle. 



Fig. 399. Turdtis mageUanicus, 7743. Details of foot, one half natural size. 



The young bird in first plumage is not unlike our Blackbird ( Turcius 

 meruld) at that stage, but has a dark, almost black, crown." (Ibis, Jan. 

 1904, p. 45.) 



TURDUS MAGELLANICUS PEMBERTONI WctmorC. 



Titrdits magellauicns pe7iibertoniy<It'VK\oxt, Univ. of Calif. Publ. in Zool., 

 Vol. 21, No. 12, p. 335 (Cerro Anecon Grande, Rio Negro, Argentina). 



Description. — Adult male, 284003 Biol. Survey Colin. U. S. Dept. 

 Agriculture, General Roca, Rio Negro, Argentina, Alexander Wetmore. 

 Total length, 9.05 inches; wing, 5.05; culmen, .85; tail, 3.88; tarsus, 

 1.58. This is a paler form of T. in. viagellanicus. In worn specimens 

 the difference in coloration of the upper surface is not pronounced but 

 the present form is much paler below, the abdomen being pale pinkish 

 buff, the breast washed with dull gray. Sexes alike. 



Dr. Wetmore states that birds in juvenal plumage present the same 

 pale type of coloration as compared with true mageUanicus of the same 

 stage. 



GeograpJiical Range. — Rio Negro except the western mountainous areas 

 and perhaps northward into Mendoza (Wetmore). 



TuRDUS FALCKLANDii Quoy and Gaimard. 



Turcius falcklandii 0}ioy and Gaimard, Voy. de I'Uranie, Zool., p. 104, 



1824 (" Malouines"). 



Description. — Adult, 161 98 A. N. S. Phila., Falkland Islands. Total 



length, 10.00 inches ; wing, 5.50 ; culmen, .78 ; tail, 4.12; tarsus, 1.75. 



Above brown (Front's brown of Ridgway), top and sides of head blackish. 



