736 Letters, Notes and Extracts. 



contrived to baffle all our efforts to locate the nest. Since 

 that year., although a strict look-out has been kept, no sign 

 of the birds has been seen, and it is to be feared that an 

 accident has occurred to one or both of them during the 

 shooting-season. 



I am, Sirs, yours &c, 



T. H. Nelson. 

 The Cliffe, Redcar, 

 June 1906. 



Sirs. — By a slip of the pen (or by a typographical error) 

 it was stated in my paper on the birds of Transcaucasia 

 (above, p. 424) that Carduelis volgensis is met with " from 

 Ssuram to the Ural." The former word should be " Ssura" 

 — a river in the Ssimbirsk Government — a right-hand tribu- 

 tary of the Volga (not Ssuram in the Caucasus). 



On p. 409 for " unwini Hume " should be read " not unwini 

 Hume." 



I am sorry to be obliged to add that I made a mistake 

 in proposing a new name (Garrulus nigrifrons) (above, 

 p. 426) for " Garrulus anatoliee " of Derjugin and Bianchi 

 (not of Seebohm) . The above-named writers, as well as 

 myself, were induced to treat the Chorokh Jay as a form 

 apart by insufficient or — as is often the case in museums — 

 by not properly labelled material. After my paper was in 

 print, I had occasion to examine the rich and carefully 

 labelled collection of Mr. Sarudny, of Pskov, and to make 

 direct comparison of selected specimens with types of the 

 G. anatoliee of Derjugin and Bianchi in St. Petersburg. 

 And I am now quite satisfied that in G. atricapillus and 

 G. krynickii sexual and age differences are much more marked 

 than in G. glandarius — females and young of the former 

 species having the head darker, and the white or whitish on 

 the forehead much reduced, as compared with adult 

 males ; so that the Chorokh or Armenian Jays brought 

 home by Mr. Derjugin are only young birds and females of 

 G. krynickii Kal. { — G. anatoliee Seeb.). 



I may add in reference to Carduelis brevirostris of Sarudny 



