Current Position

Avian and Exotics clinician

Education and Experience

Murdoch University (2015) – Bachelor of Science (Veterinary Biology), Bachelor of Veterinary Medicine & Surgery
University of Edinburgh (2020) – Certificate of Advanced Veterinary Practice in Zoological Medicine
Australian and New Zealand College of Veterinary Scientists (2022) – Membership by examination in Avian Medicine & Surgery Chapter
European College of Zoological Medicine residency in Avian Medicine & Surgery (2019-2022)
Diplomat of the European College of Zoological Medicine in Avian Medicine & Surgery (2024)

Teaching Experience

Webinar presentations: IfeVet, Vets Now, Great Western Exotics
Improve International day courses and wetlabs: Rabbit dentistry
Course presenter in IfeVet UK Postgraduate Certificate in Exotic Animals

Research

• Byron-Chance, D., Gomez, L., Saraiva, S., Hollwarth, A.J., Esquivel, E. and Anthony, T. (2024). Spontaneous Wing Tip Edema in Captive Birds of Prey: Review of 41 Cases in the United Kingdom (2004–2022). Journal of Avian Medicine and Surgery, 38(3).
• Gomez Prieto, L., Byron-Chance, D., Hollwarth, A.J. and Dutton, T.A.G. (2025). Rebound tonometry intraocular pressure reference values for conscious adult Egyptian vultures (Neophron percnopterus). American Journal of Veterinary Research, pp.1–6.
• Hollwarth, A.J and Dutton, T.A.G. ‘Retrospective analysis of pelvic limb fracture management in companion psittacines (60 cases)’, Journal of Avian Medicine and Surgery, 37(2), pp. 165-174.
• Byron-Chance, D.H., Gomez, L., Hollwarth A.J. and Dutton, T.A.G. ‘Outcomes and Complications Associated with Caudal Thoracic and Abdominal Air Sac Cannulation in 68 Birds’, Journal of Avian Medicine and Surgery 37(2), pp. 144-154.
• Hollwarth, A.J., Esmans, M.C., Hermann, A., and Dutton, T.A.G. (2023) ‘Heterotopic ossification bone formation in the frontal bones of an African grey parrot (Psittacus erithacus)’, Journal of Avian Medicine and Surgery. 36(4), pp. 388-393.
• Hollwarth, A.J., Pestell, S.T., Byron-Chance, D.H. and Dutton, T.A.G. (2022) ‘Mortality outcomes based on ASA grade in avian patients undergoing general anaesthesia’, Journal of Exotic Pet Medicine, 41, pp14-19.
• Hollwarth, A.J., Froelich, F. and Stidworthy, M.F. (2022) ‘Hormonal implant-associated soft tissue sarcoma in a domestic ferret (Mustela putorius furo)’, Veterinary Record Case Reports, 10(1).
• Hollwarth, A.J. and Vickery, S. (2022). Nurse-led rabbit clinics. The Veterinary Nurse, 13(4), pp.162–167.
• Hollwarth, A.J., Reese, D.J. and Dutton, T.A.G. (2021) ‘Osseous Migration of a Perforating Gastrointestinal
Foreign Body in an Indian Runner Duck (Anas platyrhynchos domesticus)’, Journal of Avian Medicine and
Surgery, 35(3), pp. 361-366.
• Vickery, S. and Hollwarth, A.J. (2021). Health and husbandry of companion parrots. The Veterinary
Nurse, 12(10), pp.463–471.
• Vickery, S. and Hollwarth, A. (2021) ‘How to nurse wildlife patients’, The Veterinary Nurse, 12(3), pp. 139-145.
• Hollwarth, A. and Vickery, S. (2020) ‘Small Mammal Anaesthesia Nursing’, The Veterinary Nurse, 11(3), pp.
138-146.
• Hollwarth, A. and Vickery, S. (2019) ‘How to Nurse the Avian Patient’, The Veterinary Nurse, 10(8), pp. 438-
443.

Awards

European Board of Veterinary Specialists® recognised specialist in Avian Medicine & Surgery (2024)
Pioneer’s Class of 30 under 30, London Vet Show (2022)
• Recognised as an Advanced Practitioner in Zoological Medicine by the Royal College of Veterinary Surgeons,
United Kingdom (2021)