208 ALLEN'S NATURALISTS LIBRARY. 



dotted, and in some instances blotched with purplish-bro\vri$ 

 and having tolerably distinct underlying spots of violet-grey. 

 In some clutches the purplish-brown markings are so thickly 

 collected together as to cloud the larger end of the egg, and 

 there is very seldom an attempt at a ring round the latter. 

 Axis, 0-6-07 inch; diam., 0-5-0-56. 



THE WILLOW-WARBLER. PHYLLOSCOPUS TROCHILUS. 



Motadlla trochilus, Linn., Syst Nat., i., p. 338 (1766). 

 Phyllopneuste trochilus, Macg., Br. B., ii., p. 371 (1839). 

 Phylloscopus trochilus, Newt. ed. Yarr., i., p. 432 (1873) ; Dres 



ser, B. Eur., ii., p. -491, pi. 76, fig. 2 (1879); Seeb., Cat. 



B. Brit. Mus., v., p. 56 (1881); id. Hist. Br. B., i., p. 430 



(1883); B. O. U. List Br. B., p. 16 (1883); Lilford, Col. 



Fig. Br. B., pt. v. (1887); Saunders, Man., p. 63 (1889). 

 Adult Male. General colour above olive-greenish, somewhat 

 clearer on the rump; the head like the back; lesser wing- 

 coverts like the back, the rest of the wing-coverts and quills 

 dusky brown, edged with the same colour as the back; tail 

 dusky brown, externally with narrow greenish margins, and 

 ashy-white edges to the inner webs, with, in freshly moulted 

 specimens, a narrow whitish margin extending to the tips of 

 the feathers ; head like the back, with a tolerably distinct eye- 

 brow of dull sulphur-yellow; eyel'd also yellow ; lores and sides 

 of face dull olive-greenish ; sides of neck like the back ; throat 

 and fore-neck ashy-whitish, with streaks of pale sulphur-yellow, 

 with which the feathers are margined; breast and abdomen purer 

 white, the under tail-coverts, also whitish, but washed with 

 yel'ow near the vent ; the flanks inclining to olive buff, and 

 slightly washed with yellow ; thighs yellow ; under wing-coverts 

 and axillaries sulphur-yellow, as also the edge of the wing; 

 quills dusky below, ashy-whitish along the inner margin ; bill 

 dark brown, with a slightly paler base to the lower mandible; 

 feet and claws, brown ; iris hazel. Total length, 4'8 inches ; 

 culmen, 0*5 ; wing, 2*7 ; tail, 2'i ; tarsu?, o'S. 



Adult Female. Similar to the male. Total length, 4-6 inches; 

 wing, 2-45. 



Young. After the autumn moult the young birds are much 



