Many animals, including humans, accidentally eat plastic, but we don't yet understand the impacts of it from either a health or a behavioral perspective. Here, I am studying the diets of seabirds where the amount of plastic in their stomachs is compared to more natural components that they feed on within marine food webs. This will help us better understand whether birds that eat a lot of plastic do so at the expense of more typical food items, shedding light on their behavioral ecology.