I don't know how they can justify that kind of expense. I had a horse caught in a fence. The equine vet had to travel from hobart 50 mins, remove the 8 inch flap of flesh, put 6 stitches in give a local anesthetic, tetanus and antibiotics. Not to mention the extensive bandaging. She also left antibiotic injections and bandages for us to use over the next 10 days. She had a nurse with her and she charged me $460 . I would think that dealing with a 600 kilo horse was much more dangerous than a chicken. I've had my chook to an avian vet, so I agree with , doing what you can. I just don't know how a vet can charge that much.