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Hill, Martin P, Hulley, Patrick E, Olckers, T. Insect herbivores on the exotic weeds Solanum elaeagnifolium Cavanilles and S. sisymbriifolium Lamarck (Solanaceae) in South Africa. 1993.
Hill, Martin P, Hulley, Patrick E, Allsopp, J, van Harmelen, G. Glandular trichomes on the exotic Solanum sisymbriifolium Lamarck (Solanaceae): effective deterrents against an indigenous South African herbivore. 1997.
Hill, Martin P, Hulley, Patrick E. Suitability of Metriona elatior (Klug)(Coleoptera: Chrysomelidae: Cassidinae) as a biological control agent for Solanum sisymbriifolium Lam.(Solanaceae).. 1996.
Olckers, T, Hulley, Patrick E, Hill, Martin P. Insect herbivores associated with indigenous species of Solanum (Solanaceae) in the Transvaal, South Africa, and in Namibia. 1995.
Olckers, T, Hulley, Patrick E. Resolving ambiguous results of host-specificity tests the case of two Leptinotarsa species (Coleoptera: Chrysomelidae) for biological control of Solanum elaeagnifolium Cavanilles (Solanaceae) in South Africa. 1994.
Olckers, T, Hulley, Patrick E. Host specificity tests on leaf-feeding insects aberrations from the use of excised leaves. 1994.
Craig, Adrian J F K, Hulley, Patrick E. Iris colour in passerine birds: why be bright-eyed?. 2004.
Daniels, Ryan J, Hulley, Patrick E, Craig, Adrian J F K. Comparative perch selection in Southern Fiscal Lanius collaris and Fiscal Flycatcher Sigelus silens at Amakhala Game Reserve, South Africa. 2017.
Craig, Adrian J F K, Hulley, Patrick E. Pied Crows in the Eastern Cape: what bird club records reveal. 2020.
Craig, Adrian J F K, Hulley, Patrick E. Montane forest birds in winter: do they regularly move to lower altitudes? Observations from the Eastern Cape, South Africa. 2019.
Craig, Adrian J F K, Bonnevie, Bo T, Hulley, Patrick E, Underhill, George D. Primary wing-moult and site fidelity in South African mousebirds (Coliidae). 2014.
Craig, Adrian J F K, Hulley, Patrick E. Iris colour in passerine birds: why be bright-eyed?. 2004.
Craig, Adrian J F K, Hulley, Patrick E. The birds of Fort Fordyce Reserve, Eastern Cape. 2020.
Bonnevie, Bo T, Craig, Adrian J F K, Hulley, Patrick E. Additional morphological characteristics of Olive Thrushes and Karoo Thrushes. 2004.
Craig, Adrian J F K, Hulley, Patrick E, Walter, Grenville H. The Behaviour Of Palewinged Starlings And A Comparison With Other Onychognathvs Species. 1991.
Craig, Adrian J F K, Hulley, Patrick E, Walter, Grenville H. Nesting of sympatric redwinged and pale winged starlings. 1989.
Lloyd, Penn, Hulley, Patrick E, Craig, Adrian J F K. Song sharing by neighbourhood groups of territorial male Blackeyed Bulbuls. 1999.
Lloyd, Penn, Hulley, Patrick E, Craig, Adrian J F K. Comparisons of the vocalizations and social behaviour of southern African Pycnonotus bulbuls. 1996.
Lloyd, Penn, Craig, Adrian J F K, Hulley, Patrick E, Essop, M Faadiel, Bloomer, Paulette, Crowe, Timothy M. Ecology and genetics of hybrid zones in the southern African Pycnonotus bulbul species complex. 1997.
Craig, Adrian J F K, Hulley, Patrick E. Sunbird Movements: a Review, with Posslble Models. 1994.
Hulley, Patrick E, Craig, Adrian J F K. The status of the southern ground-hornbill in the Grahamstown region, Eastern Cape, South Africa. 2007.
Bonnevie, Bo T, Craig, Adrian J F K, Hulley, Patrick E, Schultz, Albert, Tree, Anthony J. Wing-moult and seasonal occurrence of sunbirds (Nectariniidae) captured at four sites in the Eastern Cape, South Africa. 2023.
Craig, Adrian J F K, Hulley, Patrick E, Mullins, R Lorraine G. Urban birds in the Eastern Cape: local observations from Makhanda (Grahamstown) and future questions. 2021.
Craig, Adrian J F K, Bonnevie, Bo T, Hulley, Patrick E. Wing moult and sexual dimorphism in the Lesser Honeyguide Indicator minor in the Eastern Cape, South Africa. 2012.