Emergency services were on the scene shortly after the 8.30pm attack. Photo / Auckland Westpac Rescue HelicopterHe fell on an old dismantled chicken coop lying on the ground and was severely injured by some corrugated iron.
"He ended up pushed against some corrugated iron by the animal," Shepherd said.
"I'm not a medical person but he had lost a lot of blood."
Shepherd said the bull was a 'semi-pet' which was not usually hostile.
"It's not aggressive but it is big and with an animal that size if they want to play you come off second best.
The injured man was taken by chopper to Auckland Hospital. Photo / Auckland Westpac Rescue Helicopter"He might have had some bread or food in his hand that it wanted."
Shepherd said the man, who lives in a caravan on the farm, has cattle and sheep.
He said the man was lucky he was able to drag himself back to the caravan and use his cellphone to call for help.
Shepherd had been in contact with the man who was still recovering in hospital.
The bull was still at the property but Shepherd said he was staying clear of it.
"The animal is fine, I saw it this morning and it was ready to play with anyone."