316 Herr A. v. Pelzeln on Birds from 



colour. The further transitions to the perfect state of plumage 

 are very instructively represented in this series. 



SiPHiA STROPHIATA, Hodgs. Kotegurh^ Narkanda. 



SiPHiA LEUCOMELANURA, Hodgs. Kotegurh, Mahasu. 



The female (from Mahasu) is reddish-brown above, whitish 

 vmderneath, here and there washed with ochre-colour. The tail 

 near its insertion is brown, with rust-red edges. 



Erythrosterna leucura (Gm.). Sirinagur (September). 

 In my opinion not distinct from E. parva. 



Pericrocotus brevirostris (Vig.). Kotegurh (winter), 

 Gaora. 



Dicrurus longicaudatus, a. Hay. Kotegurh, Serahan, 



Gaora (August). 



The bird from Gaora (August 26, 1866) is noted as adult and 

 in moulting plumage. In this specimen the length of the wing 

 is 4" 5'", that of the tail 3" 9'"; the rectrices among themselves 

 differ but slightly in length"^. 



Siva strigula, Hodgs. Kotegurh (winter). 



Proparus vinipectus (Hodgs.). Narkanda, Kotegurh 

 (winter) . 



Allotrius xanthochlorus (Hodgs.). Kotegurh (February). 

 A. anobarbus, Temm. ; Jerdon, Birds of India, ii. p. 246. A. 

 xanthochlorus, Hodgs. ; Gould, Birds of Asia, pt. viii. 1. 12. 



Pteruthius erythropterus (Vig.). Kotegurh (winter). 



Lanius erythronotus (Vig.). Kotegurh, Gaora, Sisu (June). 



Lanius hardw^ickii (Vig.)t. Kotegurh. 



CoRVUs TiBETANUs, Hodgs. Po in Spiti (July). 



Length 26 V, tail 12", length of bill 3|", height of bill 1^" 



* [Are the full number of tail-feathers present ? or are the outer pairs in 

 process of growth? Otherwise the equality in their length is most abnor- 

 mal ; for this species is distinguished by the outer pairs of rectrices being so 

 much longer than the middle pairs. This bird must fall under the genus 

 Buchanga, Hodgs. (c/. P. Z. S. 1866, p. 547).— Tr.] 



t [The oldest title for this species is L. vittatus, Valenc. — Tr.J 



