BIEDS OF EGYPT. 305 



under the name of L. argentatus, which he declares is met 

 with singly along the Nile up to Kartoom. 



This bird is very similar to L. argentatus, from which it 

 differs in the grey back being a shade darker, and in the legs 

 of the adult being yellow. 



Entire plumage white, excepting the back, scapulars, and 

 greater part of the wings, which are grey ; the greater part of 

 the primaries black, with white tips and a white spot on the 

 outer one ; scapulars and secondaries tipped with white ; 

 beak yellow, with a scarlet patch on the lower mandible ; legs 

 bright yellow ; irides pale yellow ; eyelids scarlet. 



Entire length 22 inches ; culmen 2'4 ; wing, carpus to 

 tip, 17 ; tarsus 2 "5. 



Immature birds have the legs flesh-colour. 



336. Larus argentatus, Briinn. Herring-Gull. 



Von Heughn (Syst. Ueb. p. 69) says that this Gull is very 

 abundant on the Mediterranean coast, and is found singly 

 up the Nile as far as Kartoom. 



Similar to L. leucopheeus, but the grey on its plumage is of 

 a paler tint, and the legs in the adult are flesh-colour. 



Entire length 22 inches ; culmen 2-4 ; wing, carpus to 

 tip, 16'5 ; tarsus 2"5. 



Fig. Gould, B. of Eur. pi. 434. 



337. Larus canus, Linn. Common Gull. 



I only met with a single specimen of this Gull, on the 27th 

 of February, near Damietta. According to Von Heughn 



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