CATALOGUE—BIRDS. 541 
remigibus, rectricibus duodecim, rostroque sub-brevi atris - pedibus 
Jlavescentibus. 
Staturd paulo minor precedentibus duobus. 
63. Larus H&MATORHYNCHUsS.—Nob. in Zool. Journ. iv. 103. 
Lar. corpore plumbeo-griseo, dorso medio alisque nigris, his albo 
notatis ; rostro pedibusque sanguineis. 
The length of the bird is 18 inches; of the bill 2; of the wing, 
from the carpal joint to the end of the first quill feather, 13; of the 
tail 6 ; of the tarsi 2. Irides green silvery colour, pupil dark. 
64. Larus Fuscus? 
65. Larus RIDIBUNDUS ? 
66. LEsTRIS CATARRHOCTES? 
67. PROcELLARIA GIGANTEA. A young bird. 
68. ProcELLARIA CAPENSIS. 
This beautiful, but well-known petrel, was, of course, our con- 
stant companion on all occasions of our being at sea, and was 
particularly numerous off the entrance to the river Plata, feeding 
probably upon the exuvize that drift out with the current. One 
being taken with the hook, was killed, and in its entrails several 
small fragments of granite were found mixed with the half-digested 
food. A remarkable instance of the natural habits of this bird has 
lately come to my knowledge, which deserves to be recorded. 
The late Mr. George Fairfowl, surgeon R.N., on his return from 
New South Wales, in the year 1831, caught one of these birds, 
and let it go, with a ribbon tied round the body, by which it was 
easily distinguished ; the bird was thereby observed to follow the 
ship, from day to day, for the space of 5,000 miles. 
69. ProcELLARIA BERARDI. 
70. ProcELLARIA WiLsont.— Prince of Musignano. 
Thalassidroma Wilsonniti—Vigors. 
71. DIOMEDEA EXULANS. 
72. CYGNUS ANATOIDES. 
; ee ae : Sin feet) nee 
Cygn. albus, remigibus primariis ud apicem nigris ; rostro pedious- 
que rubris, illo lato, subdepresso, tuberculo nullo, 
