304 A PRACTICAL HANDBOOK OP BRITISH BIRDS. 



Nov. 28 to Dec. 17, 1913 (H. G. Alexander, Brit. B., VII., p. 296.) 

 — Scotland. — Fair Isle (Shetlands) recorded regularly in autumn 

 (earliest Oct. 4, latest Nov. 6) from 1907 to 1914, once spring, 

 May 7, 1909 ; Lerwick (Shetland), one obtained Oct. 28, 1910, 

 and others seen there Oct. and one Dec. 27, 1913, one Oct. 24, 

 1914 ; Orkneys, one Sule Skerry Light'Sept. 23, 1902, one obtained 

 and another seen, Kirkwall, Feb. 5, 1908, had been observed since 

 Jan. 25 ; Isle of May, one obtained Oct. 16, 1910 ; Little Ross- 

 Light (Kirkcudbright) one Dec. 3, 1916. 



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

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

 In Oct., 1846, obtained in Heligoland. 



PHYLLOSCOPUS TROCHILUS 



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

 WARBLER. 



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

 Ex cit. Willughby, etc. Restricted typical locality : England ; c/. 

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

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



Description. — (Plate 11). — Adult male and female. Winter. — 

 Whole of upper-parts olive-green to olive-brown slightly more 

 yeUowish-green on rump ; stripe from nostrils over and behind 

 eye yellow ; lores dusky black, feathers tipi^ed whitish or yellowish ; 

 ear-coverts pale brown to yeUowish-brown streaked pale yellow ; 

 chin, throat, and upper-breast whitish, more or less streaked 

 lemon-yellow, often with pale brownish streaks or wash on sides of 

 breast ; lower-breast and belly white with a few faint yellow 

 streaks ; flanks very pale yellowish-buS ; vent and under tail- 

 coverts pale yellow ; axillaries and under wing-coverts bright 

 lemon-yellow ; tail- and wing-feathers dark-brown, inner webs 

 fringed very narrowly dull white and outer webs more broadly 

 olive-green or olive-brown, wing-feathers with small whitish tips ; 

 Aving-coverts dark brown broadly fringed and tipped olive-green 

 or olive-browai. This plumage is acquired by a complete moult 

 in Juh^ and August (sometimes beginning end June). Summer. — 

 A complete moult (including wings and tail) takes jDlace Dec. to 

 March. New plumage like winter but perhaps slightly less green 

 and more brown on uj^per-parts, and as summer advances abrasion 

 makes under-parts wliiter and less yeUow and upper-parts still 

 more brown and less green. 



Nestling. — Down, greyish -white, fairly long but not plentiful ; 

 distribution, inner supra-orbital, occipital and humeral. Mouth „ 

 inside orange -yellow, two faint brownish marks on tongue-spurs, 

 externally flanges lemon-yellow. 



