Abrams, R.W. and Griffiths, A.M. 1981. Ecological structure of the pelagic seabird community in the Benguela current region. Marine Ecology Progress Series 5: 269-277.
Abrams, R.W., Griffiths, A.M., Hajee, Y. and Schoeppe, E. 1981. A computer-assisted plotting program for analysing the dispersion of pelagic seabirds and environmental features. P.S.Z.N.I. Marine Ecology 2: 363-368.
Berruti, A. 1981. The status of the Royal Penguin and the Fairy Prion at Marion Island, with notes on feral cat predation on nestlings of large birds. Cormorant 9: 123-128.
Berruti, A. 1981. Displays of the sooty albatrosses Phoebetria fusca and P. palpebrata. Ostrich 52: 98-103.
Berruti, A., Griffiths, A.M., Imber, M.J., Schramm, M. and Sinclair, J.C. 1981. The status of seabirds at Prince Edward Island. South African Journal of Antarctic Research 10/11: 31-32.
Berruti, A. and Schramm, M. 1981. More nonmarine vagrants at the Prince Edward Islands. Cormorant 9: 133-135.
Bertram, B.C.R. and Burger, A.E. 1981. Are Ostrich Struthio camelus eggs the wrong colour? Ibis 123: 207-210.
Bertram, B.C.R. and Burger, A.E. 1981. Aspects of incubation in Ostriches. Ostrich 52: 36-43.
Brooke, R.K. 1981. The place of South Africa in the world of seabirds and other marine animals. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 135-147. Cape Town: African Seabird Group.
Brooke, R.K. 1981. The type-locality of Pterodroma brevirostris (Lesson). Ardea 69: 143.
Brooke, R.K. 1981. What is Stercorarius madagascariensis Bonaparte? Ardea 69: 144.
Brooke, R.K. 1981. Layard's bird hunting visit to Tromelin or Sandy Island in December 1856. Atoll Research Bulletin 255: 73-82.
Brooke, R.K. 1981. Modes of moult of flight feathers in albatrosses. Cormorant 9: 13-18.
Brooke, R.K. 1981. The seabirds of the Mocamedes Province, Angola. Gerfaut 71: 209-225.
Brooke, R.K. and Avery, G. 1981. Southern African records of the Kerguelen Petrel Pterodroma brevirostris. Cormorant 9: 27-29.
Brooke, R.K. and Clancey, P.A. 1981. The authorship of the generic and specific names of the Bat Hawk. Bulletin of the British Ornithologists' Club 101: 371-372.
Brooke, R.K., Cooper, J. and Sinclair, J.C. 1981. Additional records of seabirds on the coast of southern Mozambique. Cormorant 9: 30-40.
Brooke, R.K. and Vernon, C.J. 1981. Early names and records of two small Hieraaetus eagles (Aves: Accipitridae) in the Cape Province of South Africa. Bulletin of the British Ornithologists' Club (Natural History) 13: 133-139.
Brown, C.R. and Loveridge, J.P. 1981. The effects of temperature on oxygen consumption and evaporative water loss in Crocodylus niloticus. Comparative Biochemistry and Physiology 69A: 51-57.
Burger, A.E. 1981. Food, foraging and social behaviour of Lesser Sheathbills Chionis minor at Marion Island (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, p. 62. Cape Town: African Seabird Group.
Burger, A.E. 1981. Food and foraging behaviour of Lesser Sheathbills at Marion Island. Ardea 69: 167-180.
Burger, A.E. 1981. Time budgets, energy needs and kleptoparasitism in breeding Lesser Sheathbills (Chionis minor). Condor 83: 106-112.
Burger, A.E. and Bertram, B.C.R. 1981. Ostrich eggs in artificial incubators: could their hatching success be improved? South African Journal of Science 77: 188-189.
Clancey, P.A., Brooke, R.K. and Sinclair, J.C. 1981. Variation in the current nominate subspecies of Pterodroma mollis (Gould) (Aves: Procellariidae). Durban Museum Novitates 12: 203-213.
Cooper, J. (Ed.) 1981. Proceedings of the Symposium on Birds of the Sea and Shore held at the University of Cape Town 19 - 21 November 1979. Cape Town: African Seabird Group: 474 pp.
Cooper, J. 1981. Biology of the Bank Cormorant, part 1: distribution, population size, movements and conservation. Ostrich 52: 208-215.
Cooper, J. 1981. Pelagic birds and mammals of the southern Benguela region. Transactions of the Royal Society of South Africa 44: 373-378.
Cooper, J. and Brooke, R.K. 1981. A bibliography of seabirds in the waters of southern Africa, the Prince Edward and Tristan groups. South African National Scientific Programmes Report 48: 1-297.
Cooper, J. and Morant, P.D. 1981. The design of stainless steel flipper bands for penguins. Ostrich 52: 119-123.
Cooper, J. and Randall, R.M. 1981. Range and movements of the Jackass Penguin Spheniscus demersus, with special reference to juvenile dispersal (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, p. 214. Cape Town: African Seabird Group.
Crawford, R.J.M., Cooper, J. and Shelton, P.A. 1981. The breeding population of White Pelicans Pelecanus onocrotalus at Bird Rock platform in Walvis Bay, 1949-1978. Fisheries Bulletin of South Africa 15: 67-70.
Crowe, A.A. 1981. The comparative feeding behaviour of the Whitefronted Sandplover Charadrius marginatus and the Sanderling Calidris alba in the southwestern Cape, South Africa (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, p. 42. Cape Town: African Seabird Group.
Crowe, T.M., Rebelo, A.G., Lawson, W.J. and Manson, A.J. 1981. Patterns of variation in body-mass of the Black-eyed Bulbul Pycnonotus barbatus. Ibis 123: 336-345.
Crowe, T.M., Schijf, J.C. and Gubb, A.A. 1981. Effects of rainfall variation, fire, vegetation and habitat physiognomy on a Northern Cape animal community. South African Journal of Wildlife Research 11: 87-104.
Duffy, D.C. and Ricklefs, R.E. 1981. Observations on growth of Blue-footed Boobies and development of temperature regulation in Peruvian guano birds. Journal of Field Ornithology 52: 332-336.
Every, B., Hosten, L.W. and Brooke, R.K. 1981. The Blue Petrel Halobaena caerulea in South Africa. Cormorant 9: 19-22.
Farkas, T. 1981. Bird communities of the false upper Karoo. Memoirs van die Nasionale Museum Bloemfontein 16: 1-160.
Frost, P.G.H. 1981. Seabird distribution in the subtropical and Subantarctic zones of the Indian Ocean (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 197-198. Cape Town: African Seabird Group.
Frost, P.G.H. 1981. Present directions and future prospects in southern African ornithology. South African Journal of Science 77: 501-510.
Frost, S.K. and Frost, P.G.H. 1981. Sunbird pollination of Strelitzia nicolai. Oecologia (Berlin) 49: 379-384.
Glyphis, J.P., Milton, S.J. and Siegfried, W.R. 1981. Dispersal of Acacia cyclops by birds. Oecologia (Berlin) 48: 138-141.
Griffiths, A.M. 1981. Biases in censuses of pelagic seabirds at sea in the Southern Ocean. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 189-196. Cape Town: African Seabird Group.
Griffiths, A.M. 1981. European Stormpetrels Hydrobates pelagicus feeding by diving off South Africa. Cormorant 9: 47.
Griffiths, A.M. 1981. Vagrant Kelp Gulls Larus dominicanus in the African sector of the Southern Ocean. Cormorant 9: 131-132.
Guillet, A. and Crowe, T.M. 1981. Seasonal variation in group size and dispersion in a population of Great White Pelicans. Gerfaut 71: 185-194.
Hall, K.J. and Williams, A.J. 1981. Animals as agents of erosion at Sub-Antarctic Marion Island. South African Journal of Antarctic Research 10/11: 18-24.
Hockey, P.A.R. 1981. Feeding techniques of the African Black Oystercatcher Haematopus moquini. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 99-115. Cape Town: African Seabird Group.
Hockey, P.A.R. 1981. Cape Shovelers Anas smithii at sea in southern Africa. Cormorant 9: 43.
Hockey, P.A.R. 1981. Ospreys Pandion haliaetus foraging at sea in southern Africa. Cormorant 9: 44.
Hockey, P.A.R. 1981. Darter Anhinga melanogaster foraging at sea in southern Africa. Cormorant 9: 44.
Hockey, P.A.R. 1981. Morphometrics and sexing of the African Black Oystercatcher. Ostrich 52: 244-247.
Hockey, P.A.R. and Hallinan, J. 1981. Effects of human disturbance on the breeding behaviour of Jackass Penguins Spheniscus demersus. South African Journal of Wildlife Research 11: 59-62.
Hockey, P.A.R. and Sinclair, J.C. 1981. The nest and systematic position of Sclater's Lark. Ostrich 52: 256-257.
Imber, M.J. and Berruti, A. 1981. Procellariiform seabirds as squid predators. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 43-61. Cape Town: African Seabird Group.
Jones, J.H. 1981. Pulmonary blood flow in Ostriches: panting vs. resting ventilation (abstract). Physiologist 24: 132.
King, J.M. 1981. The distribution of invertebrate communities in a small South African river. Hydrobiologia 83: 43-65.
Mebes, H.D. 1981. Zur Verbreitung und Oeko-Ethologie des suedwestafrikanischen Rosenpapageis Agapornis roseicollis (Vieillot). Journal of the SWA Scientific Society 34/35: 87-112.
Milton, S.J. and Siegfried, W.R. 1981. Above-ground biomass of Australian acacias in the southern Cape, South Africa. Journal of South African Botany 47: 701-716.
Morant, P.D. 1981. Twenty-second ringing report for southern Africa. Ostrich 52: 44-53.
Morant, P.D., Cooper, J. and Randall, R.M. 1981. The rehabilitation of oiled Jackass Penguins Spheniscus demersus, 1970-1980. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 267-301. Cape Town: African Seabird Group.
Puttick, G.M. 1981. Curlew Sandpiper Calidris ferruginea foraging related to prey availability (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 119. Cape Town: African Seabird Group.
Puttick, G.M. 1981. Sex-related differences in foraging behaviour of Curlew Sandpipers. Ornis Scandinavica 12: 13-17.
Robertson, H.G. 1981. Group foraging and diurnal activity of Blacknecked Grebes at sea. Ostrich 52: 248-250.
Robertson, H.G. and Wooller, R.D. 1981. Seasonal decrease in the clutch size of Hartlaub's Gulls Larus hartlaubii at Strandfontein in 1978. Cormorant 9: 23-26.
Shaughnessy, P.D., Semmelink, A., Cooper, J. and Frost, P.G.H. 1981. Attempts to develop acoustic methods of keeping Cape Fur Seals Arctocephalus pusillus from fishing nets. Biological Conservation 21: 141-158.
Siegfried, W.R. 1981. The estuarine avifauna of southern Africa. In: Day, J.H. (Ed.), Estuarine ecology, pp. 223-250. Cape Town: Balkema.
Siegfried, W.R. 1981. The incidence of veld-fire in the Etosha National Park, 1970-1979. Madoqua 12: 225-230.
Siegfried, W.R. and Field, J.G. 1981. A description of the Benguela ecology programme 1982-1986. South African National Scientific Programmes Report 54: 1-39.
Sinclair, J.C. 1981. Eight previously unreported seabirds at Marion Island, Indian Ocean. Ardea 69: 217-218.
Sinclair, J.C. 1981. Techniques for observing Subantarctic burrowing petrels at the nest. Cormorant 9: 67-72.
Sinclair, J.C. 1981. Pintado Petrel Daption capense in Kenya. Scopus 5: 77.
Sinclair, J.C. and Turner, D.A. 1981. First sight record of the Royal Tern Sterna maxima in southern Africa. Cormorant 9: 41.
Stutterheim, C.J. and Brooke, R.K. 1981. Past and present ecological distribution of the Yellowbilled Oxpecker in South Africa. South African Journal of Zoology 16: 44-49.
Summers, R.W. and Hockey, P.A.R. 1981. Egg covering behaviour of the White-fronted Plover Charadrius marginatus. Ornis Scandinavica 12: 240-243.
Van der Merwe, F. 1981. Review of the status and biology of the Black Harrier. Ostrich 52: 193-207.
Verwoerd, W.J., Russell, S. and Berruti, A. 1981. 1980 volcanic eruption reported on Marion Island. Earth and Planetary Science Letters 54: 153-156.
Waltner, M. and Sinclair, J.C. 1981. Distribution, biometrics and moult of the Terek Sandpiper Xenus cinereus in southern Africa. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 233-266. Cape Town: African Seabird Group.
Watkins, B.P. 1981. Seabird observations at Bouvet Island. South African Journal of Antarctic Research 10/11: 38-40.
White, F.N., Bartholomew, G.A. and Howell, T.R. 1981. The thermal significance of the nest of the Sociable Weaver. National Geographic Society Research Reports 13: 107-115.
Williams, A.J. 1981. Factors affecting time of breeding of Gentoo Penguins Pygoscelis papua at Marion Island. In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 451-459. Cape Town: African Seabird Group.
Williams, A.J. 1981. Penguin breeding biology and foraging range (abstract). In: Cooper, J. (Ed.), Proceedings of the Symposium on Birds of the Sea and Shore, Cape Town 1979, pp. 460. Cape Town: African Seabird Group.
Williams, A.J. 1981. Growth and survival of artifically twinned Rockhopper Penguin chicks. Cormorant 9: 8-12.
Williams, A.J. 1981. Do Rockhopper Penguins Eudyptes chrysocome feed their chicks penguin milk? Cormorant 9: 73-75.
Williams, A.J. 1981. The clutch size of Macaroni and Rockhopper Penguins. Emu 81: 87-90.
Williams, A.J. 1981. Why do penguins have long laying intervals? Ibis 123: 202-204.
Williams, A.J. 1981. The laying interval and incubation period of Rockhopper and Macaroni Penguins. Ostrich 52: 226-229.
Williams, A.J. and laycock, P.A. 1981. Euphausiids in the diet of some Sub-Antarctic Eudyptes penguins. South African Journal of Antarctic Research 10/11: 27-28.
Williams, A.J. and STONE, C. 1981. Rockhopper Penguins Eudyptes chrysocome at Tristan da Cunha. Cormorant 9: 59-66.
Withers, P.C., Siegfried, W.R. and Louw, G.N. 1981. Desert Ostrich exhales unsaturated air. South African Journal of Science 77: 569-570.
