58 STUDIES IN BIRD-MIGRATION 



Great Grey Shrike, Lanius excubitor, 



Suiniiier. — Northern Continental Europe. 

 Winter. —Western Europe. 



Red-backed Shrike, Lanius colhirio. 



Smnmer. — Southern Scandinavia. 



Winter. — Tropical, Equatorial, and Southern Africa. 



Whitethroat, Sylvia sylvia. 



Summer. — Southern Scandinavia. 

 Winter. — Tropical and Equatorial Africa. 



Lesser Whitethroat, Sylvia curruca. 



Summer. — Southern and Central Scandinavia. 

 Winter. — Northern and North Tropical Africa. 



Blackcap, Sylvia atricapilla. 



Sumnwr. — Southern and Central Scandinavia. 

 Winter. — Southern Europe to Tropical Africa. 



Garden-Warbler, Sylvia borin. 



Summer. — Scandinavia. 



Winter. — Tropical and South Africa. 



Willow-Warbler, Phylloscopus trochilus and P. t. eversmanni. 



Summer. — Northern Continental Europe. 

 Winter. — North-western to South Africa. 



Northern Chiffchaff, Phylloscopus abietana {P. collyhila abietimi). 



Summer. — Scandinavia. 



Winter. — Southern Europe, Northern Africa 



Yellow-browed Warbler, Phylloscopus superciliosus. 

 Sumnwr — Siberia. 



IcTERiNE Warbler, Hypolais hypolais. 



Summer. — Southern and Central Scandinavia. 

 Winter. — Tropical and Southern Africa. 



