regurgitated, indigestible shell and other fragments left by a sea bird on the coastal cliffs north of collaster, unst, shetland

background ball beach bird bones broken close closeup coast coastal crab crustacean crustaceans debris environment fish food grass green gull indigestible islands isolated natural nature north ornithology outdoor part pellet people purple regurgitate regurgitated remote scotland scottish sea shell shellfish shells shetland shetlands shore skeleton undigested vomit wild wildlife