Common tern mom attempts to fend off other birds from stealing her chicks fish

common tern wildlife sterna hirundo visdief chick birdwatching birding bird behavior nature opportunistic laridae seabird aquatic habitat wetland birdspotting humorous dutch birdlife ornithology birdlover birder birdlife avian bird aves fauna animal plumage outdoors wild birdwatcher low angle dutch wildlife no people sterna charadriiformes natural angular wings juvenile hungry tern survival of the fittest competition