| Review of ring recoveries of waterbirds in southern Africa LG Underhill, AJ Tree, HD Oschadleus, V Parker Avian Demography Unit, 1999 | 120 | 1999 |
| SAFRING bird ringing manual SJ De Beer, GM Lockwood, J Raijmakers, JMH Raijmakers, WA Scott, ... ADU guide 5, 31-32, 2001 | 84 | 2001 |
| Moult: an R package to analyze moult in birds B Erni, BT Bonnevie, HD Oschadleus, R Altwegg, LG Underhill Journal of Statistical Software 52 (8), 1-23, 2013 | 55 | 2013 |
| SAFRING Bird ringing manual. ADU Guide 5 SJ De Beer, GM Lockwood, J Raijmakers, JMH Raijmakers, WA Scott, ... Avian Demography Unit: Cape Town, 2001 | 40 | 2001 |
| Polonium-210 and Lead-210 in edible molluscs from near the Cape of Good Hope: Sources of variability in polonium-210 concentrations M Heyraud, RD Cherry, HD Oschadleus, CJ Augustyn, MI Cherry, ... Journal of Environmental Radioactivity 24 (3), 253-272, 1994 | 39 | 1994 |
| Return to Robben Island of African Penguins that were rehabilitated, relocated or reared in captivity following the Treasure oil spill of 2000 PJ Barham, RJM Crawford, LG Underhill, AC Wolfaardt, BJ Barham, ... Ostrich-Journal of African Ornithology 77 (3-4), 202-209, 2006 | 35 | 2006 |
| Review of ring recoveries of birds of prey in southern Africa: 1948–1998 TB Oatley, HD Oschadleus, RA Navarro, LG Underhill Endangered Wildlife Trust, Johannesburg, 1998 | 22 | 1998 |
| Radiometric date for the Port Durnford peat and development of yellow-wood forest along the South African east coast HD Oschadleus, JC Vogel, L Scott Bureau Scientific Publications, 1996 | 21 | 1996 |
| New isotopic and sedimentological measurements of the Thabaseek deposits (South Africa) and the dating of the Taung hominid PV Tobias, JC Vogel, HD Oschadleus, TC Partridge, JK McKee Quaternary Research 40 (3), 360-367, 1993 | 19 | 1993 |
| Further African bird-mammal feeding associations CJ Vernon, WRJ Dean Ostrich 59 (1), 38-39, 1988 | 15 | 1988 |
| Cataloguing the Lubango bird skin collection: towards an atlas of Angolan bird distributions MSL Mills, U Franke, G Joseph, F Miato, S Milton, A Monadjem, ... Bull. ABC 17, 43-53, 2010 | 14 | 2010 |
| African Penguin population and habitat viability assessment P Whittington, RJM Crawford, O Huyser, D Oschadleus, R Randall, ... IUCN/SSC Conservation Breeding Specialist Group: Apple Valley, USA, 2000 | 14 | 2000 |
| Nest-building males trade off material collection costs with territory value IE Bailey, KV Morgan, HD Oschadleus, SL DeRuiter, SL Meddle, ... Emu-Austral Ornithology 116 (1), 1-8, 2016 | 13 | 2016 |
| African penguin population and habitat viability assessment. Final report P Whittington, RJM Crawford, O Huyser, D Oschadleus, R Randall, ... Apple Valley, USA: IUCN/SSC Conservation Breeding Specialist Group, 2000 | 13 | 2000 |
| Urban land use does not limit weaver bird movements between wetlands in Cape Town, South Africa JL Calder, GS Cumming, K Maciejewski, HD Oschadleus Biological Conservation 187, 230-239, 2015 | 12 | 2015 |
| Breeding seasonality and primary moult parameters of Euplectes species in South Africa HD Oschadleus, LG Underhill Ostrich-Journal of African Ornithology 77 (3-4), 142-152, 2006 | 11 | 2006 |
| Prediction of mean adult survival rates of southern African birds from demographic and ecological covariates YC Collingham, B Huntley, R Altwegg, P Barnard, OS Beveridge, ... Ibis 156 (4), 741-754, 2014 | 10 | 2014 |
| Primary moult of adult Red-billed Queleas (Quelea quelea) in southern Africa in relation to patterns of movement HD Oschadleus, LG Underhill Emu-Austral Ornithology 108 (4), 331-339, 2008 | 10 | 2008 |
| edcc: An R package for the economic design of the control chart W Zhu, C Park Journal of Statistical Software 52 (i09), 2013 | 9 | 2013 |
| Patterns of primary moult in the weavers, Ploceidae HD Oschadleus University of Cape Town, 2005 | 9 | 2005 |
