Paul Streeter, from Weare, said his girlfriend was sick after the carcass was discovered in a baby leaf and rocket salad bought at Tesco.
"I couldn't believe my eyes. It was horrific. She was seconds away from eating it."
Tesco said it would be conducting a "thorough investigation".
Streeter emptied the salad into a bowl and presented it to his family at the dinner table before returning to the kitchen.
"Suddenly my girlfriend shrieked and couldn't believe what she'd found on her plate. She had ladled the salad onto her plate and thought she was cutting into one of the dark leaves and what she found was a dead bird. I didn't know what to think. I was concerned about the health of my family as they had eaten some of the salad."
A Tesco spokesperson said: "We take matters of this kind extremely seriously and are very disappointed to learn of this incident."Post published in: World News