68 WniTE-EYED GULL. 



by the latter. They are probably therefore merely seen in Greece 

 daring their migration further south, where they breed. 



Salvadori (op. cit.) says of this bird: — "Teniminck asserts that this 

 species is sometimes met with on the coast of Sicily, and Durazzo 

 says he found one individual in the spring of 1840 in the harbour 

 of Genoa. It would be desirable that attentive observations should 

 be given in confirmation of these assertions. This species is common 

 in the Red Sea, and is said to be found frequently in the Grecian 

 Archipelago." 



Doderlein (op. cit.) says, '^Temminck is of opinion this Larus, 

 which inhabits the coasts of the Russian seas and Ionian Islands, 

 may sometimes come into the waters of Sicily. It has been taken 

 in the states of Genoa, but there is no authority for its occurrence 

 in Sicily up to this date. It has not occurred in Sardinia." 



Dr. Heuglin (" Ibis," vol. i, p. 349,) says they are very scarce 

 north of the tropic, but very frequent more to the south; and Baron 

 "Warthausen ("Ibis," vol. ii, p. 129,) says that when Dr. Heuglin 

 examined the Island of Perim, "he found a high rocky part of it 

 almost exclusively occupied by Larus leucoplithalmus , which had 

 selected that spot for breeding, (Sep. 17th., 1857.) Two eggs, con- 

 taining mature embryons, which cannot be referred to any other 

 species, were found under a bush. One of the specimens procured for 

 my collection, shows that the eggs are as closely allied to those of 

 the preceding specie's {harus hempricJiii) as the birds themselves are 

 to each other. It is twenty-four lines long, and twelve lines broad." 



The description which the Baron gives of the e^^ of L. hemprichii 

 is, — " The pale greyish yellow, rarely brownish yellow, sometimes 

 greenish grey ground-colour, is speckled, dotted, and striolated with 

 grey and pale brown. They are moderately shining, and have a 

 weight of forty-six to forty-eight grains, or more." The egg of L. 

 leucojjhthalmus , he says, "has a darker and browner ground-colour, 

 the same grey and brown markings; and besides it is lineolated with 

 blackish on the broad extremity. The grain equals that of the eggs 

 of Larus hemprichii, but appears to be rather more strongly 

 developed." 



I copy the following from Heuglin's "Vogel Nord-Ost Africas:" — 

 "A bird of a year old, killed in September, has the hood but 

 slightly extended, and of a dull smoky black, mixed with some earth 

 brown feathers rather rubbed. The colours of the back, although 

 fresh, are yet considerably lighter than those of old specimens; the 

 lesser wing coverts and most of the secondaries old and rubbed, 

 dusky earth brown, with a somewhat lighter edge, the latter scantily 



