302 
ai.len’s naturalist’s library. 
small birch trees, at an elevation of about ii,ooo feet. It did 
not contain eggs. 
Eggs. —Unknown. 
Page 214. Add : — 
Pallas’s willow-warbler. phvlloscopus proregulus. 
Motacilla proregulus, Pall. Zoogr. Russo. -Asiat. i. 11. 499(1811). 
Phylloscopus proregulus, Seebohm, Cat. B. Brit. Mus. v. 
p. 71 (1881) ; Dresser, B. Eur. Suppl. p. 74. pi. 650, fig. 2 
(189s); Southwell, Zool. 1896, p. 8; Gurney, Zool. p. 
135 (1897). 
Adult Male. — Similar to P. super ciliosus, but easily dis- 
tinguished by the yellow rump, in strong contrast to the 
greenish back. Like P. superciliosus, it has a couple of yellow 
wing-bars, as well as a light yellowish streak on the crown 1 
“ upper mandible dark-brown, the lower one orange nearly to 
the tip ; legs brown ; feet yellowish.” Total length, 4’5 inches ; 
culmen, o'45 ; wing, 2-3 ; tail, i'65 ; tarsus, o'S. 
Adult Female. — Similar to the male. Total length, 3-6 
inches ; wing, i 9. 
Seebohm says that the winter plumage is scarcely distinguish- 
able from the summer plumage, but the autumn livery is more 
brilliant than that of spring. In summer, the yellow of the 
mesial line on the crown, eye-stripes, wing-bars, and rump, 
becomes paler by abrasion, the pale tips to the quills dis- 
appear, and the broad edges to the innermost secondaries 
become narrow. Otherwise, he says, the changes from spring 
plumage are very slight. 
Range in Great Britain. — A specimen of this Willow-Warbler 
was shot at Cley, in Norfolk, on the 31st of October, 1896, by 
Mr. E. Ramm. 
Range outside tlie British Islands. — -In Heligoland this species 
is believed by Gatke to have occurred at least twice. Its home 
is in Eastern Siberia and the Himalaya. Mountains, and it visits 
the neighbourhood of Orenburg in autumn, and winters in 
Tenasserim and in Southern China. 
Habits. — The present species is described as having a very 
powerful note. Mr. Styan describes it as a “ loud Canary-like 
