Mediterranean gulls are not common birds in the Netherlands. They look a lot like the better known black-headed gull and to make it even more difficult, they often nest in the same colonies. Nevertheless, with a bit of effort, it is possible to tell them apart. The Mediterranean gull has a much brighter red beak and a darker black cap. Furthermore, the Mediterranean gull has white instead of black wing feathers, giving the wings a much lighter appearance than those of the black-headed gull. Additionally, Mediterranean gulls are much fussier eaters; they eat mostly larvae from beetles and crane flies (leatherjackets) and worms.