454 
ZOOLOGICAL GEOGRAPHY. 
[part III. 
wood-hen ( 0. sylvestris). There is also a peculiar thrush, Turdus 
vinitindus. Its other birds are wholly of Australian types, and 
most of them probably Australian species. The following have 
been observed, and no doubt constitute nearly its whole indigen- 
ous bird fauna. Acanthiza sp., Rhipidura sp., Pachycephala gut - 
turalis, Zosterops strennuus and Z. tephropleurus, Strepera sp., 
Halcyon sp., and Chalcophaga chrysoclilora. The* two species of 
Zosterops are peculiar. The Ocydrcnnus is important enough to 
ally this island to New Zealand rather than to Australia ; and if 
the white bird seen there is, as supposed, the Notornis alba which 
is extinct in Norfolk -Island, the connection will be rendered 
still more clear. 
Chatham Islands. — These small islands, 450 miles east of New 
Zealand, possess about 40 species of birds, of which 13 are land- 
birds. All but one belong to New Zealand genera, and all but 
five are New Zealand species. The following are the genera of 
the land-birds : Sphenceacus , Qerygone , Myiomoira, Rhipidura , 
Zosterops , Anthus, Proslhemadera, Anthornis, Chrysococcyx, Cyano- 
ramphus, Carpophagai Circus. The peculiar species are An- 
thornis melanocephdla, Myionwira , diffenbachi and M. tr aver si, 
Rhipidura fldbellifera , and a peculiar rail incapable of flight, 
named by Captain Hutton Cabaltis modestus. It is stated that 
the Zosterops differs from that of New Zealand, and is also a 
migrant ; and it is therefore believed to come every year from 
Australia, passing over New Zealand, a distance of nearly 1,700 
miles ! Further investigation will perhaps discover some other 
explanation of the facts. It is also stated, that the pigeon and 
one of the small birds (? Qerygone or Zosterops ) have arrived at 
the islands within the last eight years. The natives further de- 
clare, that both the Stringops and Apteryx once inhabited the 
islands, but were exterminated about the year 1835. 
The Auckland Islands.— These are situated nearly 300 miles 
south of New Zealand, and possess six land-birds, of which three 
are peculiar, — Anthus aucklandicus , Cyanoramphus aucklandicus , 
and C, malherbii, the others being New Zealand species of 
Myiomoira , Prostliemadera , and Anthornis. It is remarkable 
that two peculiar parrots of the same genus should inhabit these 
