RECENT ADDITIONS TO THE BRITISH AVIFAUNA. 7 



Pallas's Willow Warbler has recently been found almost every 

 year during migration on the western slopes of the Ural range, 

 but has only once been obtained on Heligoland, and once seen, 

 though not secured ; thus it is still an extremely rare straggler 

 in Europe west of the Ural. The British-killed specimen was 

 shot by a son-in-law of Mr. H. N. Pashley, who has obtained so 

 many rarities at Cley -next- the Sea, where the last one procured 

 was the Aquatic Warbler. Mr. Gatke holds that Pallas's Willow 

 Warbler may be separated into two subspecies, the Siberian form, 

 the true P. proregulus of Pallas, being greener and brighter in 

 tinge of colour on the upper parts, the under parts being pure 

 white with a lemon tinge, the second quill being equal to the 

 eighth ; whereas in the Himalayan or southern form, which he 

 proposes (' Ibis,' 1889, p. 578) to call Phylloscopus neivtoni, the 

 second quill is equal to the tenth, the plumage is dull brownish 

 yellow in tone of colour, and the under parts are not so white. I 

 cannot, however, endorse this view, as in a series I have found 

 both the tone of colour and the relative length of the quills very 

 variable ; but I may remark that, were it possible to recognize 

 these two subspecies, the British-killed specimen must be referred' 

 as might be expected, to the Siberian and not to the Himalayan 

 form. 



With regard to Phylloscopus viridanus, this Warbler has been 

 obtained on Heligoland on three occasions. It inhabits Central 

 Asia, but how far north it ranges I have not been able to 

 ascertain. It is common in the Himalayas, and winters in India 

 as far south as Ceylon. That it breeds in Europe there can be 

 no doubt, as I received a young bird barely able to fly from 

 Tjubuk, in the Southern Ural. This specimen I referred to 

 Phylloscopus plumbeitarsuSy Swinh., when in 1878 I wrote the 

 article in the ' Birds of Europe,' but subsequently discovered and 

 corrected my error. 



