AND SOME OT1IEU HARE EUROPEAN WARBLERS. 
281 
Himalayas to admit of specific separation, and proposed for the 
southern form (‘ I his,’ 1889, p. 578) the name, Phylloscopux 
newtoni, retaining that of Phyll< wen-pus pmretjulu* for the 
Siberian form. I found, however, on comparing a series of 
examples, that it was impossible to separate them specifically, 
though, as a rule, Siberian examples are brighter-coloured than the 
average run of specimens from the Himalayas. According to 
Mr. Giitke, “the Siberian bird differs from that of India in general 
colour of plumage, which in the former is suffused with a 
bright lemon yellow, approaching and partly surpassing that of 
ri1>ilatri.>\ whereas the colour of the latter consists entirely of 
a dull brownish olive yellow, verging in many instances towards 
ashy grey” . . . “In the Siberian bird the second <piill is of 
equal length with the eighth, in the Indian bird with the tenth ; in 
the former bird the second quill is only six millimetres shorter than 
the point of the closed wing ; in the latter this difference amounts 
to ten millimetres; and whilst in the Indian bird the second quill is of 
equal length with the longest of the three posterior quills, it is in the 
Siberian from six to seven millimetres longer.” “ Further, in the 
Siberian bird the third, fourth, and fifth quills are of equal length, 
and form the point of the closed wing, whereas in the Indian one 
such is the case with the fourth, fifth, and sixth quills, the third 
being three millimetres shorter than these.” With regard to this 
supposed difference in wing formula, all I can say is, that on 
examining a large series, I find that the wing formula varies so 
much that it cannot in my opinion be looked on as a good 
character, and I cannot therefore recognise P. newtoni as a valid 
sub-species, any more than I can Phylloseopus lvimei as a valid 
sub-species of Phylloseopus supereifiosus. 
With regard to the range of Pallas’s Willow Warbler, it was 
until comparatively recently looked on as strictly an Asiatic species 
which had on one or two occasions strayed into Europe proper, but 
Mr. Zarudny has found that it occurs regularly on the western 
slopes of the Ural. He obtained a single specimen near Orenburg 
in 1879 and another in 18 r 4 ; and in 1887 he believes that 
a partial migration took place near there, as on the 3rd October 
a pair was observed in the Protopopen Grove ; and on the 
1th of October about fifteen were observed together with several 
Goldcrests, and one was also seen in a llock of Coal Tits, and to 
