13, ADULT, ADULTS, ALAIN, AMBIANCE, ANIMAL, AREA, AVES, AZUR, BANK, BANKS, BE, BEHAVIOR, BEHAVIOUR, BEING, BILATERIA, BIODIVERSITY, BIRD, BLACK-HEADED, BOUCHES-DU-RH, CAMARGUE, CHARADRIIFORMES, CHORDATA, CHORDATE, CHROICOCEPHALUS, COELOMATA, COMPETITION, COMPETITIONS, CONCERN, CONFRONTATION, CONFRONTATIONS, D, DEUTEROSTOMIA, DEVELOPMENT, DISPUTE, DISPUTED, DISPUTING, EDGE, EDGES, ENVIRONMENT, EUKARYOTA, EUROPE, EUROPEAN, euteleostomi, FACE-TO-FACE, FACING, FAUNA, FIGHT, FIGHTER, FIGHTERS, FIGHTING, FIGHTS, FLAP, FLAPPING, FLAPS, FLUTTER, FRANCE, FRESHWATER, FULL, GLOBAL, GNATHOSTOMATA, GULL, GULLS, HEART, IN, INDIVIDUAL, INTRA-SPECIFIC, IUCN, JUNE, LARIDAE, LARUS, LC, LEAST, LENGTH, LIST, LOCOMOTION, LOW, LR, MANAGEMENT, METAZOA, MOTION, NATURAL, NATURE, NE, NECKING, NEST, NESTED, NESTING, NOBODY, OF, ONE-ON-ONE, OPISTHOKONTA, ORNITHOLOGICAL, OVERVIEW, OVERVIEWS, PARK, PARKS, PONT-DE-GAU, POSE, POSED, POSING, PROFILE, PROTECTION, PROVENCE-ALPES-C, RED, REGIONAL, REPRODUCTIVE, RESOURCES, rhipidistia, RIDIBUNDUS, RISK, RIVALRIES, RIVALRY, RIVE, ROUX, SARCOPTERYGII, SAUROPSID, SAUROPSIDA, SEA, SEAGULL, SEASON, SEASONS, SETTLING, SETTLINGS, SHOT, SHOTS, SIDE, SIGHT, SIGHTS, SP, SPECIES, SPRING, STAGE, TE, TEMPERATE, TETRAPODA, TETRAPODOMORPHA, THE, THREATENED, TO, UNION, USE, VERTEBRATA, VERTEBRATE, VIEW, VIEWS, WATER, WETLAND, WILD, WINGS, WITH,