[@article{RN210,
 author = {Crawford, R J M and Cooper, J and Dyer, B M and Greyling, M D and Klages, N T W and Ryan, P G and Petersen, S L and Underhill, L G and Upfold, L and Wilkinson, W},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {1},
 pages = {427-440},
 title = {Populations of surface-nesting seabirds at Marion Island, 1994/95–2002/03},
 volume = {25},
 year = {2003}
}
,@article{RN264,
 author = {Crawford, R J M and Whittington, P A and Upfold, L and Ryan, P G and Petersen, S L and Dyer, B M and Cooper, J},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {3},
 pages = {419-426},
 title = {Recent trends in numbers of four species of penguins at the Prince Edward Islands},
 volume = {31},
 year = {2009}
}
,@article{RN216,
 author = {Ryan, P G and Jones, M G W and Dyer, B M and Upfold, L and Crawford, R J M},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {3},
 pages = {409-417},
 title = {Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands},
 volume = {31},
 year = {2009}
}
,@article{RN196,
 author = {Crawford, R J M and Cooper, J and Dyer, B M and Greyling, M D and Klages, N T W and Nel, D C and Nel, J L and Petersen, S L and Wolfaardt, A C},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {1},
 pages = {487-498},
 title = {Decrease in numbers of the Eastern Rockhopper Penguin Eudyptes chrysocome filholi at Marion Island, 1994/95–2002/03},
 volume = {25},
 year = {2003}
}
,@article{RN1330,
 author = {Pichegru, L and Ropert-Coudert, Y and Kato, A and Takahashi, A and Dyer, B M and Ryan, P G},
 issn = {0722-4060},
 journal = {Polar Biology},
 number = {7},
 pages = {945-954},
 title = {Diving patterns of female macaroni penguins breeding on Marion Island, South Africa},
 volume = {34},
 year = {2011}
}
,@article{RN267,
 author = {Crawford, R J M and Cooper, J and Dyer, B M},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {1},
 pages = {475-486},
 title = {Population of the macaroni penguin Eudyptes chrysolophus at Marion Island, 1994/95–2002/03, with information on breeding and diet},
 volume = {25},
 year = {2003}
}
,@techreport{RN1334,
 author = {Isaksen, K and Hofmeyr, G J G  and Dyer, B M  and Naestvold, A  and Mehlum, F  and Gjertz, I  and Bakken, V  and Huyser, O  and},
 institution = {CCAMLR WG-EMM},
 title = {Preliminary results from CEMP-monitoring of Antarctic Fur Seals, Chinstrap Penguins and Macaroni Penguins at Bouvetoya 1996/97},
 year = {1997}
}
,@techreport{RN892,
 author = {Crawford, R J M and Dyer, B M and Kotze, P G H and McCue, S and Meÿer, M A and Upfold, L and Makhado, A B},
 institution = {Oceans and Coasts, Department of Environmental Affairs},
 title = {Status of seabirds breeding in South Africa in 2011},
 type = {Technical report},
 year = {2012}
}
,@article{RN352,
 author = {Crawford, R J M and Dundee, B L and Dyer, B M and Klages, N T W and Meÿer, M A and Upfold, L},
 issn = {1054-3139},
 journal = {ICES Journal of Marine Science: Journal du Conseil},
 number = {1},
 pages = {169-177},
 title = {Trends in numbers of Cape gannets (Morus capensis), 1956/1957–2005/2006, with a consideration of the influence of food and other factors},
 volume = {64},
 year = {2007}
}
,@article{RN354,
 author = {Whittington, P A and Dyer, B M and Crawford, R J M and Williams, A J},
 issn = {1474-919X},
 journal = {Ibis},
 number = {2},
 pages = {327-330},
 title = {First recorded breeding of Leach's storm petrel Oceanodroma leucorhoa in the Southern Hemisphere, at Dyer Island, South Africa},
 volume = {141},
 year = {1999}
}
,@article{RN355,
 author = {Crawford, RJM and Cooper, J and Dyer, BM},
 issn = {0257-7615},
 journal = {South African Journal of Marine Science},
 number = {1},
 pages = {33-42},
 title = {Conservation of an increasing population of great white pelicans Pelecanus onocrotalus in South Africa's Western Cape},
 volume = {15},
 year = {1995}
}
,@article{RN289,
 author = {Crawford, R J M and Dyer, B M and Upfold, L and Ward, V L},
 issn = {0030-6525},
 journal = {Ostrich},
 number = {3-4},
 pages = {145-148},
 title = {Age at first breeding of Bank Cormorants, Phalacrocorax neglectus, and Cape Cormorants, P. capensis},
 volume = {72},
 year = {2001}
}
,@article{RN282,
 author = {Crawford, R J M and Dyer, B M and Kemper, J and Simmons, R E and Upfold, L},
 issn = {1448-5540},
 journal = {Emu},
 number = {4},
 pages = {253-261},
 title = {Trends in numbers of Cape Cormorants Phalacrocorax capensis over a 50-year period, 1956–57 to 2006–07},
 volume = {107},
 year = {2007}
}
,@article{RN302,
 author = {Crawford, R J M and Dyer, B M},
 issn = {1474-919X},
 journal = {Ibis},
 number = {3},
 pages = {329-339},
 title = {Responses by four seabird species to a fluctuating availability of Cape anchovy Engraulis capensis off South Africa},
 volume = {137},
 year = {1995}
}
,@article{RN1310,
 author = {Crawford, R J M and Dyer, B M and Geldenhuys, D and Makhado, A B and Randall, R M and Upfold, L and Visagie, J and Waller, L},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {3},
 pages = {411-424},
 title = {Trends in numbers of crowned cormorants in South Africa, with information on diet},
 volume = {34},
 year = {2012}
}
,@article{RN2811,
 author = {Crawford, R J M and Dyer, B M and Upfold, L and Makhado, A B},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {2},
 pages = {225-231},
 title = {Congruent, decreasing trends of gentoo penguins and Crozet shags at sub-Antarctic Marion Island suggest food limitation through common environmental forcing},
 volume = {36},
 year = {2014}
}
,@article{RN2320,
 author = {Crawford, R J M and Ryan, P G and Dyer, B M and Upfold, L},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {3},
 pages = {427-430},
 title = {Recent trends in numbers of Crozet shags breeding at the Prince Edward Islands},
 volume = {31},
 year = {2009}
}
,@article{RN274,
 author = {Crawford, R J M and Cockcroft, A C and Dyer, B M and Upfold, L},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {1},
 pages = {161-166},
 title = {Divergent trends in bank cormorants Phalacrocorax neglectus breeding in South Africa's Western Cape consistent with a distributional shift of rock lobsters Jasus lalandii},
 volume = {30},
 year = {2008}
}
,@article{RN333,
 author = {Crawford, R J M and Dyer, B M and Cordes, I and Williams, A J},
 issn = {0006-3207},
 journal = {Biological Conservation},
 number = {1},
 pages = {49-58},
 title = {Seasonal pattern of breeding, population trend and conservation status of bank cormorants Phalacrocorax neglectus off south western Africa},
 volume = {87},
 year = {1999}
}
,@article{RN2510,
 author = {Underhill, L G and Bartlett, P A and Baumann, L and Crawford, R J M and Dyer, B M and Gildenhuys, A and Nel, D C and Oatley, T B and Thornton, M and Upfold, L},
 issn = {1474-919X},
 journal = {Ibis},
 number = {1},
 pages = {29-37},
 title = {Mortality and survival of African Penguins Spheniscus demersus involved in the Apollo Seaoil spill: an evaluation of rehabilitation efforts},
 volume = {141},
 year = {1999}
}
,@article{RN272,
 author = {Crawford, R J M and Altwegg, R and Barham, B J and Barham, P J and Durant, J M and Dyer, B M and Geldenhuys, D and Makhado, A B and Pichegru, L and Ryan, P G},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {1},
 pages = {139-156},
 title = {Collapse of South Africa's penguins in the early 21st century},
 volume = {33},
 year = {2011}
}
,@article{RN361,
 author = {Crawford, R J M and Tree, A J and Whittington, P A and Visagie, J and Upfold, L and Roxburgh, K J and Martin, A P and Dyer, B M},
 journal = {African Journal of Marine Science},
 pages = {189-193},
 title = {Recent distributional changes of seabirds in South Africa: is climate having an impact},
 volume = {30},
 year = {2008}
}
,@article{RN1560,
 author = {Whittington, P A and Crawford, R J M and Dyer, B M and Ryan, P G},
 issn = {1814-232X},
 journal = {African Journal of Marine Science},
 number = {3},
 pages = {439-444},
 title = {Estimates of numbers of kelp gulls and Kerguelen and Antarctic terns breeding at the Prince Edward Islands, 1996/1997–2008/2009},
 volume = {31},
 year = {2009}
}
,]