profile of great black backed gull, larus marinus walk on stone wall with sea on background. wild animal background, croatia

great black backed gull wildlife nature bird wild sea animal larus marinus seagull ocean beak seabird white blue wall stone outdoor background wing beautiful feather water ornithology head birdwatching summer beach waterbird natural marine shore european graceful gulls lone watching fauna coastline adult daytime coast closeup predator travel landscape profile silhouette walk croatia background croatia