9G ^^IIlTK-I:vKl) gulIv. 



fishing constantly, and not by any means shy, like 

 the Black -headed Gidl. After remainin"; from eisrht 

 to fourteen days it disappears. 



Temminck says that they live in great numbers 

 among the Grecian Islands; but Lindermayer merely 

 copies what Count Miihle has written, with the 

 addition that he shot one in the locality mentioned 

 by the latter. They are probably therefore merely 

 seen in Greece during their migrations further south, 

 where they breed. Dr. Hueglin ("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. Hueglin 

 examined the Island of Perim, "he found a high 

 rocky part of it almost exclusively occupied by Larus 

 leucophthalmus , which had selected that spot for breeding, 

 (Sep. 17th., 1857.) Two eggs containing mature em- 

 bryons, which cannot be referred to any other species, 

 were found under a bush. One of the specimens 

 procured for my collection, shews that the eggs are 

 as closely allied to those of the preceding species 

 {Larus hemprichii) 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 

 e^^ of L. leucophthalmus 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 



