PHYLLOSCOPUS. 81 



General Distribution. This form of the Willow- Warbler 

 is said to breed in north-eastern Russia and Siberia. It 

 passes through Roumania on migration and apparently 

 winters in Africa ; it has been obtained from Bering sea. 



Phylloscopus borealis. ARCTIC WILLOW- WARBLER. 



Phyllopneuste borealis Blasius, Naumannia, 1858, 

 p. 313 : Sea of Okhotsk. 



Phylloscopus borealis (Bias.) ; Seebohm, Cat. Birds B. M. v. 1881, 



p. 40 ; Clarke, Ann. Scottish N. H. 1909, p. 1. 

 Borealis, of the north wind, i. e. northern. 



Distribution in the British Islands. A Rare Visitor. It has 

 occurred at Sule Skerry, Orkneys, Sept. 1902 ; and at Fair 

 Isle, Shetlands, Sept. 1908 and 1913. 



General Distribution. The Arctic Willow- Warbler breeds 

 in the north of the Old World, from northern Norway to 

 eastern Siberia. It winters in southern Asia, wandering as 

 far south as the Sunda Islands and Moluccas. It has 

 occurred on Heligoland. 



Phylloscopus sibilatrix. WOOD-WARBLER. 



Motacilla Sibilatrix Bechstein, Naturforsch. xxvii. 1793, 

 p. 47 : Germany. 



Phylloscopus sibilatrix (Bechst.) ; Seebohm, Cat. Birds B. M. v. 

 1881, p. 54 ; B. O. U. List, 1st ed. 1883, p. 17 ; Sounders, 

 Manual, 2nd ed. 1899, p. 71. 

 StWWtna!=that trills or whistles. 



Distribution in the British Islands. A Summer Visitor. 

 Widely but locally distributed over the mainland of Great 

 Britain, as far north as Sutherland. Very local in Ireland, 

 but has nested in Galway and Queen's County, and probably 

 in Wicklow. Has occurred in spring and autumn at Fair 

 Isle, Shetlands, either as a straggler or on passage. 



General Distribution. The Wood- Warbler breeds from 

 south Sweden and Archangel to France, the Alps, and 



