Greg J. Harrison is an American avian (bird) veterinarian who"Friend or foie gras: Can the infamous delicacy ever be humane?". Grist. By Deena Shanker on 2 Oct 2013 is noted for having established the US' first all-bird clinic, The Bird Hospital in Lake Worth, Florida. He later was a founder of the company HBD International, Inc. which manufactures the product line Harrison's Bird Foods. Harrison also was a main contributor and editor of several of the field's earliest and most well-known texts including, Avian Medicine: Principles and Applications"Building a good avian library" . Winged Wisdom, February 1997. and Clinical Avian Medicine.Cousquer, Glen. ["Book Review:Clinical Avian Medicine"]. Veterinary Times, 2006. and the Avian Veterinary Compendium.Becker, Marty. "Don't jump into bird buying". Spokesman Review. 24 August 2003.
Early life and education Harrison graduated a veterinarian Iowa State University in 1967. He was a charter member of the Omega Tau Sigma fraternity."The Kappa Chapter". Omega Tau Sigma.
Career Harrison moved to South Florida shortly after graduation. Initially he operated a typical all-animal veterinary clinic but later changed the clinic to avian-only. Harrison spent several years developing nutrition formulas for captive birds, and marketing a line of products under the brand "Harrison's Bird Diets"."Pet birds take their perch as an intelligent alternative". The Palm Beach Post, West Palm Beach, Florida, August 4, 1996, Page 472"Parrots: 8 Things to Know Before You Get One". Vet Street, By Mikkel Becker | October 18, 2013 His wife Linda Harrison, an editor, established the veterinary periodical Exotic DVM (A Practical Resource For Clinicians) and both would serve as early leaders of the AAV (Association of Avian Veterinarians).
Harrison also studied the use of rigid endoscopy in the treatment of birds.
Harrison for many years spoke and wrote about bird health, and was frequently quoted in the media and in other publications as an expert on this subject."Poor Feeding Can Kill Bird". Lakeland Ledger - Jan 14, 2004, page D4
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