536 



6181a. C. tingitanus, Irby (Ibis, 1864, p. 264). A small form of Raven which inhabits North-west Africa 

 and has been also obtained at Teneriffe. Full particulars respecting this species will be found in the 

 present Work. 



The following Table will show the variation in measurements of the various species of Ravens and Crows 

 found in the Western Palsearctic Region : — 



C. corax 



C. tingitanus 



C. umbrinus 





yj • 



c. 



affinis . 



c. 



cor one, . 





)) 





a 





» 





}i 



c. 



comix 



7) * 



Height of bill. 



Culmen 





Wing. 





Tail. 





Tarsus. 





inch. 





inches. 





inches 





inches 





inches. 



Skane, Sweden. 



1-15 





3-2 





16-0 





9-5 





2-5 



Faeroes. 



1-1 





32 





15-5 





9-0 





25 



Denmark. 



11 





3-7 





16-2 





10-1 





2-65 



Greenland. 



1-15 





3-4 





17-2 





10-2 





2-6 



Archangel, juv. 







3-0 





136 





8-5 





2-6 



Spain, <S , $ . 



1-00- 



•11 



3-00- 



-3a 



162- 



16-7 



9-7- 



9-8 



2-50-2-65 



Sardinia, d , 2 • 



1-05- 



115 



3-25- 



-33 



16-7 





9-5- 



10-0 



2-60-2-7 



Jerusalem, 3. 



115 





3-5 





17-0 





9-7 





2-7 



Cashmere. 



0-95 





31 





16-9 





9-6 





2-7 



Ladak, <S , $ . 



0-90- 



1-15 



3-10- 



3-4 



17-0 





10-4- 



10-6 



2-30-2-6 



Nepal. 



11 





37 





18-5 





11-5 





2-9 



Texas. 



1-05 





3-0 





16-6 





10-0 





2-75 



Mexico. 



1-1 





33 





17-5 





10-8 





2-9 



Tangier, tf, 5. 



0-95- 



1-0 



2-50- 



-2-7 



13-8- 



14-9 



7-75- 



-8-6 



2-50-26 



Santa Cruz, 3 . 



1-0 





2-8 





14-5 





9-3 





2-5 



Palestine. 



0-9 





2-70- 



-2-9 



143- 



15-5 



800-8-6 



260-2-9 



Egypt. 



0-9 





2-85 





153 





8-7 





2-8 



Palestine. 



0-85 





2-5 





14-5 





6-4 





2-45 



Aboyne, Scotland. 



0-75 





23 





12-8 





7-4 





2-3 



Bushey, Herts. 



0-72 





2-25 





12-9 





7-0 





2-28 



Granada, Spain, <J . 



0-7 





2-0 





120 





7-4 





2-28 



Nowchow, China, $ . 



0-75 





2-2 





12-35 





7-0 





2-28 



Hakodadi, Japan. 



0-72 





2-2 





12-5 





8-4 





2-3 



Europe. 



0- 72-0- 75 



2-2-2-3 



125- 



13-0 



7-50 



-8-2 



2-28-2-35 



Egypt. 



0-70- 



0-72 



2-0-2-2 



12T- 



12-2 



7-50- 



-7-7 



2-2-2-3 



The common Crow is found over the entire Palsearctic Region, from the extreme west to Japan 

 and China ; but its range is peculiar, as in some parts it is entirely replaced by C. comix, which 

 in others it again in turn replaces. 



In Great Britain it is tolerably common in the southern counties of England, being rarer as 

 one approaches Scotland, where it is, to a large extent, replaced by the Hooded Crow, though 

 both species are found in that country, and, as below stated, not unfrequently interbreed. 

 Mr. Robert Gray says (B. of W. of Scotl. p. 172), "throughout the mainland of Scotland 

 generally the Carrion-Crow and Hooded Crow are found in about the same numbers. In 

 autumn I have seen very large flocks of both in the north of Banffshire assembled together 

 in the open fields, and examining the heaps of manure that had been laid down previous to the 

 land being ploughed. In September 1866 I observed upwards of 100 of each in a field near the 



