96 BIRDS OF EUROPE AND NORTH AFRICA 



Phylloscopus proregulus proregulus (Pallas). 



(^ $ Above olive green, supercilium, central coronal stripe, 

 some nuchal feathers, tips of median and greater wing coverts 

 (forming two wing bars), and rump yellow ; beneath white tinged 

 yellow, under wing coverts and axillaries yellow. ist primary 

 twice as long as coverts ; 2nd between 7th and 9th, generally 

 7th and 8th ; 4th and 5th longest ; 3rd to 6th emarginate. 

 Bill dark brown, yellow below at base. Legs and feet greenish 

 brown. Wing ^ 49-56, ? 47-55 (W.). Tarsus 16-17. Bill 6-7. 



Breeds. — E. Siberia. Winters chiefly S. China. Annual on 

 passage at Orenburg ; accidental Britain and Heligoland. 



Phylloscopus fuscatus (Blyth). Dusky Warbler. 



(^ 9 Above brown, rufous on upper tail coverts ; super- 

 cilium buff, paler in front of eye ; beneath, whitish on throat 

 and middle of abdomen, breast and under tail coverts buff, 

 flanks darker, axillaries and under wing coverts buff, ist primary 

 twice length of coverts and about half as long as 2nd ; 2nd 

 between 8th and 9th or 9th and loth ; 4th longest ; 3rd to 6th 

 emarginate. Bill dark horn, yellow below. Legs and feet yellow 

 brown. Wing (^ 56-64, 9 53-6i (W.). Tarsus 20-22. Bill 8-9. 



An E. Siberian species ; has occurred twice in Britain. 



Herbivocula. 



Tail slightly rounded; bill broader than in " Phylloscopus." 



Herbivocula scli"warzi (Radde). 



^ $ Closely resembles " P. fuscatus " ; above olive brown, 

 reddish on rump and upper tail coverts, supercilium buff; beneath 

 yellowish white, darker on flanks ; outer tail feathers 3-5 m.m. 

 shorter than central, ist primary about twice length of coverts ; 

 2nd between 8th and loth ; 4th and 5th longest ; 3rd to 6th 

 emarginate. W^ing ^^ 58-67, $ 56-64 (W^). Tarsus 21-22. Bill 8-9. 



An E. Siberian species ; has occurred once in England. 



Cbttia. 



Small brown \Varblers with graduated tail of 10 feathers, 

 under tail coverts reaching about H of tail ; frequent damp 

 localities ; of shy habits ; insectivorous ; nest a cup in a bush ; 

 eggs brick red, occasionally with a pinkish tinge. 



