14-4 MORGAN — Ornithological Trip, St. Vincent and Spencer Gulfs. 



this petrel to be Cinathisma cyaneoleuco, the new petrel lately 

 described by Mr. Bassett Hull (Emu, Vol. XV., p. 205). I 

 hope soon to have an opportunity of settling the point. 



9. Hydroprogne tschegrava strenua — Caspian Tern. — Fairly 

 common and breeding on the Spit. One nest contained three 

 eggs and the other a chick and a chipped egg. These two 

 nests were in the bare sand, within a few yards of one another. 

 The old birds made a great clatter while the nests were being 

 photographed. 



10. Thalasseus bergii poliocercus — Crested Tern. — Seen at 

 intervals throughout the trip. They had just started to lay 

 on the Spit, one egg being seen on the bare sand. 



11. Sternula nereis — Little Tern. — Seen at the Spit, Gam- 

 bier Island, and Wedge Island. They were breeding in 

 numbers on the Spit: on one end they had young able to fly, 

 and on the other were sitting on eggs. The nests were 

 arranged in parallel rows. All the clutches were of two eggs. 

 Many of the old birds were seen carrying small fish for their 

 young. 



12. Brucliigavia novachollandiae ethelae — Silver Gull. — Not 

 very common ; only a few were seen throughout the trip. 

 They were probably away nesting somewhere.. 



13. Gabianus pacificus — Pacific Gull. — Seen at the Spit 

 and Wedge Island. A bird at the Spit behaved as though 

 breeding, but no nest was found. The Messrs. Golley say 

 they breed on Wedge Island in the tussocky grass. On the 

 top of an island at Pondalowie Bay was a flat limestone rock 

 upon which were great numbers of the shells of a large 

 mollusc (Turbo, sp.), locally known as "Warrener." We con- 

 cluded that they were brought up there and dropped by Pacific 

 gulls. The Messrs. Gulley confirmed this, as they had often 

 seen the gulls so behave on Wedge Island. They said that 

 the birds sometimes dropped the shells several times before 

 succeeding in breaking them. 



14. Stercorarius parasiticus — Arctic Skua. — A few birds 

 were seen at intervals from Backstairs Passage to near the 

 Outer Harbour. Two birds were secured near Troubridge 

 Island, one the light, and the other the dark phase. Both 

 were females in a non-breeding condition. Birds, inter- 

 mediate in plumage, were seen, but none secured. I have 

 often seen these birds following the s.s. Karatta, and picking 

 up any scraps thrown overboard. They also commonly chase 



