Not gonna lie, I actually like the idea of Seagulls stealing from you. I do think it should be a rarer occurance since upon going by a couple seagulls I managed to get 3 of the 6 food items I had stolen in under a minute but that's still pretty accurate to real seagulls.

The main issue is there's no feedback when they steal from you aside from the initial advancement. It took me a few minutes to even notice half my food was gone. If a seagull steals off of your body in real life you would definitely feel it, so I'd suggest adding some sort of (optional) feedback such as:
-A swooping and plucking sound when they steal
-Maybe a tick of very weak damage just so you get the sound and camera tilt (because seagulls are NOT gentle about taking stuff)

Currently if there is any feedback it's too weak to be noticable unfortunately, so it'd be nice to get something more noticable rather than watching your hotbar constantly.

Make the food item jiggle or flash red on the hotbar?