ii6 



THE MIGRATION OF BRITISH BIRDS 



c en 



^ TS 



op 



> § 





'^' = .5 r£ <" '^ 8 rt 



rt O O rt = = 



.5 S o 



— OS 



O- Cl. CX rt 

 O O O ^ 



<J O O Q^ 



= c '3 25. 2 5"^. 5 ~_2^ 



HHH 







S c/: Ch Ch J^ W W 



?»^ >> S>N >~. 



a; cn X c/i 



2 „ _ 



^ ^ JS " 



n! ci t? 

 ci CI, s 



O O -tJ 



o u "2 



S 2 3 



o o o 



o 5 .- — ii 



HH 



-§ 2j ^ = S 



a rS ri rt d 



■S ti w - -r > > > 



'A 'A J^Ji-J^-S} 





<<A 



