The 26-year-old male got into an altercation with a seagull after it attempted to steal the McDonald's meal he had just started to eat.
It happened in Plymouth city centre on 9 July in front of police officers - after they witnessed the incident they arrested him. The man told police he was under the influence of drugs.
The detainee was taken to hospital for treatment, but the seagull flew away before it could be seen to.
A police spokesperson told Plymouth Live: "He sunk his teeth into it before throwing it to the floor.
"Officers had seen the incident and immediately went over and detained and took details from him.
"Around this time, the man volunteered the information that he was under the influence of drugs and it was decided that he should be taken to Derriford Hospital for treatment.
"The seagull was clearly injured by the incident but flew off before we were able to check on its welfare. We don't know what happened to it afterwards."
Posting on their official Twitter account, Charles Cross Neighbourhood Police Team said: "Yesterday we detained a male who attacked & injured a seagull in the city centre.
"Love them or loathe them, seagulls are protected under the Wildlife & Countryside Act 1981.
"The bird flew away before we could check its welfare. The crime is under review #unacceptable."
The winged psychopaths have become known for their aggression over the past few years, with reports of them not only injuring people, but also stealing items other than food, including allegedly a pet chihuahua.
One victim of a seagull attack has said he believes it's only a matter of time before the animals' aggression proves 'fatal' to someone, after gulls trapped him and his wife in their own home last year.
Pensioner Roy Pickard thinks they could do much more harm than running off with the flake from your ice cream.
Roy and wife Brenda, from Knott End near Morecambe Bay in Lancashire, had been trapped in their home for six days as gulls were nesting above their front door - and attacked every time the couple left the house.
Roy even required hospital treatment for cuts on the back of his head he suffered after birds swooped to protect their young.
Speaking to The Sun, he said: "I don't think it's going to be long before a child is seriously injured or an elderly person falls trying to get away from a seagull and bangs their head, which could be fatal."
Councillor Alan Amos, a former mayor in Worcester, also believes the birds could be more dangerous than we realise.
He told the newspaper: "It might sound ridiculous but I believe it won't be long before a baby becomes the next victim of Britain's increasingly aggressive seagulls."Featured Image Credit: PA