Bernhard Schulz, a German national, had gone out for a walk Saturday with Bijou, but failed to return, causing his wife, Kirsten, to fear the 74-year-old man was dead, ThinkSpain reported Tuesday.
Bernhard fell into a ditch surrounded by dense trees and weeds, and because of his injury was unable to move, the news service said.
Bijou didn't leave her owner's side for the three days he was trapped in the woods, and even curled up on top of him to keep him warm at night. Kirsten said she believes her husband wouldn't be alive had the dog not been there to keep him warm.
She said she was worried because her husband suffers from Parkinson's disease and had been unable to take his medication for three days while he was trapped.
When rescuers came near the ditch where Bernhard lay, Bijou became excited and leaped up and down, wagging her tail and barking, alerting the crew to her owner's whereabouts, ThinkSpain said.
Bernhard was transferred to a hospital in Denia where he is recovering.