A HAND-LIST OF BRITISH BIRDS. 57 



120. Phylloscopus collybita abietinus (Nilss.)— THE SCANDI- 

 NAVIAN CHIFFCHAFF. 



Sylvia abietina Nilsson, Kgl. Vet.-Akad. Handl., 1819, p. 115 (Sweden). 

 Phylloscopus collybita abietina (Nilss.), Bonhote, Bull. B.O.C., xxiii, p. 21 ; 

 id., Bvit. B.,ii, p. 233. 



BiSTmBVTioy.—Eiigland.—One, a female, St. Catherine's Light 

 (Isle of Wight), April 15, 1907 {tit supra). 



Distribution. — Abroad. — Generally north and east Europe, but 

 difficult to distinguish, therefore distribution not well known, and 

 requiring further study. 



121. Phylloscopus collybita tristis Blyth— THE SIBERIAN 

 CHIFFCHAFF. 



Phylloscopus tristis Blyth, Journ. As. Soc. Bengal, xii, p. 966 (1843 — 



Calcutta). 



Phylloscopus tristis, Clarke, Ann. Scot. Nat. Hist., 1907, p. 15 ; id.. Bull. 



B.O.C., xix, p. 18 ; Saunders, Brit. B., i, p. 8. 



Distribution. — Scotland. — About a dozen obtained and others 

 seen as follows :— One, Sule Skerry Light (Orkneys), Sept. 23, 1902 ; 

 four obtained and others seen, Fair Isle (Shetlands), Oct. 21 and 24, 

 1907 ; one obtained and another seen, Kirkwall (Orkneys), Feb. 5, 

 1908, had been observed since Jan 25 {cf. W. E. Clarke, Ann. S.N.H., 

 1907, p. 15, 1908, p. 80 ; and Brit. B., i, pp. 8, 382). One, Fair Isle, 

 autumn, 1909 {op.c. iv, p. 289), and several autumn, 1910 {op.c, v, 

 p. 200). One obtained Isle of May, Oct. 16, 1910 (E. V. Baxter 

 and L. J. Rintoul, Ann. S.N.H., 1911, p. 3). One obtained Shetlands 

 Oct. 28, 1910. and others seen (J. S. Tulloch, t.c, 1911, p. 115 ; 

 cf. Brit. B., IV, p. 318, v, pp. 28, 200). 



Distribution. — Abroad. — Breeding from Petchora and Ural to 

 Lake Baikal, migrating through Turkestan, and wintermg in India. 

 In Oct., 1846, obtained in Heligoland. 



PHYLLOSCOPUS TROCHILUS 



122. Phylloscopus trochilus trochilus (L.)— THE WILLOW- 

 WARBLER. 



MoTACiLLA Trochilus Linnaeus, Syst. Xat., ed. x, i, p. 188 (1758 — 

 Ex eit., Willughby, etc. Restricted typical locality : England ; cf. 

 Hartert, Vog. pal. Fauna, i, p. 507). 

 Phylloscopus trochilus (Linnaeus), Yarrell, i, p. 432 ; Saunders, p. 69. 



Distribution. — British Isles. — Summer-resident (early April to 

 mid-Sept.). Abundant and widely distributed, but somewhat 

 local Cornwall, rare north Caithness, local Skye, but common in 



