508 



twittering song from the tops of the dense-growing fir-trees. It was, however, so shy that I 

 could not then succeed in shooting it; hut on the 21st July I shot a pair near Tjubuk, which 

 were feeding their half-fledged young without showing any sign of fear ; and subsequently I 

 shot several young birds which had completed their moult, and were singing like the one I 

 heard at Perm, but not so loudly." From the Ural the present species ranges right across the 

 continent of Asia. In the collections sent from the country skirting Lake Baikal by Dr. Dybowski 

 there have been a tolerable number of this Warbler, thus showing that it is not uncommon 

 there ; and, according to Mr. Meves, it was obtained by Von MiddendorfF as far east as Ochotsk. 

 Von Middendorff himself says that he shot it on the 8th (20th) June near Udskoj Ostrog, and 

 Dr. Stubendorff sent it to him from the Birjussa, in the Sajan Mountains. Dr. Radde shot two 

 examples, on the 17th and 19th August 1856, near the village of Kulussutajeffsk, where this 

 species was found, in company with Phylloscopus superciliosus, frequenting the hedges. On the 

 spring passage he did not observe it. According to Colonel Prjevalsky, who met with it in 

 Mongolia, it is very abundant in the Kansu Mountains, where it generally confines itself to the 

 wooded cliffs. It appeared there in the middle of May ; but the snow which fell after its arrival 

 destroyed a great many, and he found some dead and others so weak that they caught them with 

 their hands. Pere Armand David says (Ois. de la Chine, p. 271) that large numbers pass Pekin 

 at the same time as Phylloscopus borealis ; and Swinhoe met with it on the west coast of Hainan 

 in March. It is rather difficult to state where this bird winters, as the information respecting 

 its winter quarters are very meagre ; but Lord Tweeddale possesses examples procured by Captain 

 Wardlaw Ramsay in January at Kyouk-kyre, in British Burmah, and by Captain Beavan at 

 Moulmein in September. It is worthy of note that this species does not appear to have been 

 obtained in India, or at least recorded from there, it being replaced by Phylloscopus viridanus, 

 which is rather greener in colour, has the head rather darker than the back, the third, fourth, 

 and fifth primaries longest, the second equal to the seventh, and the upper wing-bar wanting. 

 This latter species may possibly be found within the limits of Europe, as a young bird obtained 

 by Mr. Meves at Tjubuk, on the south-east side of the Ural, appears to belong to this species. 



Phylloscopus nitidus, Blyth (J. As. Soc. Beng. xii. p. 905, 1843), is another Asiatic species 

 which has once occurred in Europe, a single example having been shot by Mr. Gatke's son 

 Ludwig in Heligoland ; but I do not think it advisable to include it on the strength of this 

 single occurrence. This species approaches very closely to Phylloscopus viridanus, differing only 

 in having the upper parts greener, the head the same colour as the back, and the underparts pale 

 lemon-yellow. 



As this species differs so little in coloration from its allies, I have not deemed it necessary 

 to figure it. 



The specimen described is one from near Lake Baikal, in my own collection. 



In the preparation of the above article I have examined the following specimens : — 



E Mus. II. E. Dresser. 

 a, <$ ad. Bystraja, near Lake Baikal, July loth, 1870 (Dybowski). b, 'pull. Tjubuk, S.E. Ural, July 21st, 

 1872 {Meves). 



E Mus. H. Seebohm. 



a, 6 , June 9th, b, d , June 15th, c, d, June 19th, d, ?, July 7th, 1870, Lake Baikal (Dybowski). 



