74 



THE MIGRATION OF BRITISH BIRDS 



Pica inaitritanica. 

 .Smaller : no light rump patch. 



Fringilla spodiogeiia. 

 Underparis much paler. 



Paras ledouci. 

 Nape and cheeks yellow. 



Acrcdiila irhii. 



No rosy tinge on scapulars, which 

 are grey. 



Anthits bcrthcloti. 



Smaller : underparts narrowly stri- 

 ated : no green tints in plumage. 



Gecinus viridis vaillantii et sharpii. 

 No black on forehead and round eye. 



Piciis numidicits. 

 Scarlet on breast. 



Picas Icdouci. 



Underparts strongly suffused with 

 brown. 



Pica caitdata. 



Smaller : ramp patch much less in 

 extent. 



I'riiigilla ccclcbs. 



Underparts much paler. 



Par us atcr. 

 Nape and cheelcs yellow. 



Acrcdula cajidata et rosea. 

 No rosy tinge on scapulars. 



AiitJiHS pratciisis. 



Smaller : very buft" in general color- 

 ation : striations on underparts 

 smaller. 



Cecinas Z'iridis. 

 Black absent from ear coverts, lores, 

 and round eye. 



Picas major. 



Occasional reversions to red on 

 breast. 



Picas minor. 

 Underparts not so pure in colour. 



Equally suggestive is the fact that of the remaining 

 species no fewer than 64, or nearly two-thirds of the 

 entire number of resident British species, are still resi- 

 dent in the Iberian Peninsula, in the Balearic Islands, 

 in Corsica and in Sardinia, North-Wcst Africa, or the 

 Canaries, and do not present any differences from the 

 northern individuals of the same species. Their dis- 



