BIRDS OF THE BRITISH ISLES. 93 



Subalpine Warbler, 



THE Subalpine Warbler (Sylvia subalpina, Bonelli) is an 

 exceedingly rare visitor to the British Isles, and is a summer 

 visitor from Northern Africa to the basin of the Mediter- 

 ranean. The adult male in summer is above, ashy-grey; 

 wings and tail, brown, feathers edged with paler brown; 

 throat and chest, reddish-chestnut, bordered on either side 

 by a white line from base of bill; remainder of under parts 

 chiefly white; irides, brown; eyelids, red; bill and legs, 

 brown. Length, about five inches. 



Barret) Warbler, 



THE Barred Warbler (Sylvia nisoria, Bechstetn) is a very 

 rare abnormal autumn migrant to the British Islands. It is 

 a summer visitant from North-Eastern and Central Africa to 

 most parts of both Central and Southern Europe. The 

 adult male in summer has the general colour of the upper 

 parts brownish-grey; primaries, wing-coverts, and innermost 

 secondaries, browner, with broad tips of white to the two 

 latter; head and rump, greyish-brown; most feathers above, 

 with the exception of middle of back, have more or less, 



