AVES TYRANNID^. 795 



MUSCISAXICOLA MACLOVIANA MACLOVIANA (Gamot). 



Sylvia inacloviana Garnot, Voy. Coq. Zool. i. p. 540 (1826) (Falkland 

 Islands). 



Description. — Adult male, 70567, Mus. Comp. Zool., Port Stanley, East 

 Falkland Isl., October 30, 1915. Total length, 6.70 inches ; wing, 4.37; 

 culmen, .50; tail, 2.82; tarsus, 1.15. Coloration almost exactly like M. 

 m. ineutalis, from which it differs in its larger size. The crown appears 

 to be a little richer and darker in color and the gray of the back a little 

 mottled and not quite so uniform. 



Geographical Range. — Falkland Islands. 



MusciSAXicoLA MACLOVIANA MENTALis d'Orbigny & Lafresnaye. 



Muscisaxicola menfalis d'Orbigny and Lafresnaye, Syn. Av. p. 66 (1836) 

 (Carmen de Patagones, Argentina, as fixed by Peters, Bull. M. C. Z. 

 Ixv. p. 322). 



Description. — Adult male, 7637, P. U. O. C, Punta Arenas, Chile, De- 

 cember 27, 1897, J. B. Hatcher. Above including wings ashy gray ("drab" 

 of Ridgway) except the crown which is Mars brown, with ligher tips to 

 the feathers, and the rump and upper tail coverts which are nearly black 

 like the tail and flight feathers ; sides of face dark ashy, lores black, chin 

 tinged with dark chestnut; under parts white with an ashy tinge; bill and 

 feet black. Total length, 6.25 inches; wing, 4.15; culmen, .48; tail, 

 2.60; tarsus, 1. 10. 



GeograpJiical Range. — Tierra del Fuego north to Argentina and said 

 to extend to Peru and Bolivia. 



Mr. Hatcher and his associates found this bird to be abundant in the 

 Punta Arenas region in December; the birds evidently were breeding at 

 that time. Later, in February and March, at the head waters of the Rio 

 Chico de Santa Cruz, another series of specimens was collected ; the 

 birds of the year were then fully moulted from the first nestling dress to 

 the first fall plumage and young males at this age apparently lack the 

 chestnut chin spot. Both adults and young of the year were secured here 

 at this season and presumably the birds were common. 



Mr. Peters obtained one at San Antonio, August 15, another at Huan- 

 uluan, September 10, and one at the western extension of Lake Nahuel 

 Huapi in February. He considers that it breeds from the wooded slopes 



