That's according to researchers at the University of Sussex.
Scientists say seagulls have become chip and ice cream thieves because they see how much humans enjoy eating them.
Researchers at the University of Sussex carried out an experiment where different colour crisp bags were placed on a beach, and teams sat nearby eating crisps from green and blue bags.
The Daily Telegraph reports 95 per cent of seagulls pecked at the packets that matched the colour of the bags the researchers were eating from - and around one quarter approached them to try to steal their crisps.