(Woods Hole Oceanographic Institution, 1964)
Pocklington, Roger; Risebrough, Robert W.
Following the "Preliminary Guide to the Birds of the Indian Ocean" (Watson,
Zusi & Stover, Smithsonian Institution, 1963} our Indian Ocean Bird Log begins
at a position (20°N, 37°30'E) in the Red Sea off Port Sudan which we
reached on the afternoon of l August, 1963. Thus the southern portion of
the Red Sea and the Gulf of Aden are included in the area covered by our
Indian Ocean records. The northern boundary line is the southern coast of
Arabia, 20°N line to India and the west coast of India from Bombay to
Ceylon. The furthest point East that we reached is Colombo (7°N 80°E) and
the eastern boundary line runs from there through the Chagos Is. (6°S 71°E)
to Mauritius (20°S 57°30'E) and the southern tip of Madagascar. The western
boundary is the coast of Africa as far south as cape Delgardo (10°30'S
40°30'E) thence via the Comoros to Madagascar. We quit the region east of
Lourenco Marques (26°S 37°E) around noon on the 11 November, 1963. About
one third of the area of. the Indian Ocean falls within these bounds.