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THE MIGRATION OF BRITISH BIRDS 



RESIDENTS IN BRITISH ISLANDS. 



Alcedo ispida 



^ Anser cinereus 



Tadorna cornuta 



Anas boschas 



Anas clypeata 



Anas crecca 



Anas strepera 



^ Fuligula ferina 



- Vanellus cristatiis 



- Totanus calidris 



' Tringa alpina 



Scolopax rusticula 



Olis tarda 



Eotauras stellaris 



Phalaciocoiax carbo 



Phalacrocorax graculus 



Uria troile 



Puffinus anglorum 



Procellaria pelagica 



- Laius fuscus 



' Lariis ridibundus 



Podiceps cristatus 



Podiceps minor 



- Galliiiula chloropus 



- Fiilica atra 



Ralliis aquaticus 



- Crex bailloni 



Columbus palumbus 



Columbus a;nas 



Perdix cinerea 



Tetrao urogallus 



Lagopus mutus 



N. W. AFRICA CANARY ISL. 



1 These species only occasionally breed as far south as Iberia ; the habit having nearly 

 lapsed owing to the Post-Cilacial northern extension of range. 



- These species now only reach the Canary Islands, the extreme southern portion of 

 their refuge area in Western Europe, as winter visitors in varying numbers, having ceased 

 to breed therein. 



Continuing our investigations still further \vc find that 

 out of the resident birds, or species, to be met with in 

 some part of the British Islands throughout the year, 

 no less than 29 resort to Refuge Area II. in winter, 

 indicating a former range base, many of them there can 

 be little doubt being individuals from our islands whose 

 place in them at that season is taken by other individuals 

 visiting us from more northerly or easterly areas, and 



