juvenile yellow legged gull dashing to grab an eelgrass rhizome

gull sea fly seagrass water winter action activity adult aggression animal avian background ball beak yellow legged behaviour blades bill bird clump coast concept eelgrass horizontal interspecific juvenile leaf kleptoparasitism larus michahellis morning nature neptune grass nobody ocean outdoors plumage posidonia rhizome sea-gull side view seaweed steal sunny wildlife zostera black headed