Caspian Sea and the Elburz Mountains. 501 



Sylvia communis icterops Menetries (cf. Hartert, Vog. 

 pal. F. p. 587). 



Sylvia cinerea Bechst. [B. 174. W. 1903, p. 511 : 1907, 

 p. 86.] 



<? c?- May 1,*) , 



? May 15 J Elburz Mts - ( n ° rth side, alt. 500-7000 ft.). 



The males are much greyer and not so brown on the 

 upper side as those of the typical Whitethroats, while the 

 edges to the secondaries and greater wing-coverts are of a 

 paler, less rufous brown ; the female is pale brown on the 

 upper side. The measurements of both sexes are larger. 

 The two specimens procured by me in Fars also agree with 

 this race. 



Sylvia mystacea Menetr. [W. 1903, p. 539; 1907, 

 p. 86.] 



Sylvia rubesceyis B. 177. 



c?. March 18, S. coast, Caspian Sea. 



c? . April 6, Elburz Mts. (north side, alt. 2000 ft.). 



" Seen for the first time on March 18th, and found again 

 quite numerously among the oak-scrub valleys at 4000 feet 

 on the north side of the mountains." — R. B. W. 



Phylloscopus collybita tristis Blyth. [B. 180.] 



$ ? . March 1, S. coast, Caspian Sea. 



? . April 18, Elburz Mts. (near Tehran, alt. 6500 ft.). 



Blanford obtained the Siberian Chiffchaff only in Baluch- 

 istan, and it does not appear to have been recorded before 

 from North Persia. Mr. Woosnam notes that ChifFchafts 

 were first seen f ' at Resht in the first week of February, when 

 there were at least two feet of snow on the ground," and 

 afterwards throughout the whole journey. 



It would seem, therefore, that the bird spends the winter 

 in North Persia. 



Phylloscopus trochilus trochilus (L.). [B. 180. W. 

 1903, p. 539; 1907, p. 87.] 



<J . May 4, Elburz Mts. (alt. 7000 ft.). 

 d . May 16, S. coast, Caspian Sea. 



