1920.] the Birds of tlie Anglo-Kyyptiaii, Sudan. Si 'J 



Aden and the Somali coast. Ileuglin also records Herring- 

 Gulls (though as the common species L. argentatus — which 

 is most unlikely) as common on the Nile as t'ai- south as tlie 

 junction ot" the Blue and White Niles. These records may 

 almost certainly be taken as L. cachianans also. 



Larus fuscus fuscus. 



Larus fuscus Linn. Syst. Nat. 10th ed. 1758, p. 136: 

 Europe, restricted type-locality Sweden; Reichw. V. A. i. 

 p. 41 ; Butler, Ibis, 1905, p. 382, 1909, p. 403. 



[B. coll.] 1 Port Sudan May, U.S. 



The Lesser Black-backed Gull is common in winter^ both 

 in the Nile Valley and on the Red Sea coast. 



Larus (Ichthyaetus) ichthy actus. 



Larus ichthyaetus Pallas, Reise Russ. Reichs, ii. 1773, 

 p. 713 : Caspian Sea. 



Larus jihoenicopos (Gmel.) ; Reichw. V. A. i. p. 46. 



The Great Black-headed Gull is recorded from the Red 

 Sea coast, and, though there are as yet no definite records, 

 is almost certain to occur on that part of it which lies within 

 our limits. 



Larus (Chroicocephalus) ridibundus. 



Larus ridibundus Linn. Syst. Nat. 10th ed. 1758, p. 225 : 

 Habitat in Mari Europaeo, restricted type-locality England ; 

 Reichw. V. A. i. p. 47 ; Butler, Ibis, 1908, p. 256. 



[B. coll.] 1 Dueira Jan. W.N. 



White and Blue Niles in winter, not common. 



The Mediterranean Black-headed Gull (L. melanocephalus) 

 is reported by Brehm from " Nubia." 



Larus (Adelarus) leucophthalmus. 



Larus leucophthalmus Temm. PI. Col. livr. 62.. 1825, pi. 366 : 

 Coasts of the Red Sea ; Reichw. V. A. i. p. 48 ; Butler, 

 Ibis, 1909, p. 403. 



[B. coll.] 3 Port Sudan May, R.S. 



[C. & L. coll.] 5 Port Sudan Dec. & Apl. E.S. 



Abundant on the Red Sea Coast. 



