royal tern in flight, thallaseus maximus, white bird with black cap, blue sky with white clouds in background, costa rica. wildlif

action animal background beak beautiful bird black blue cloud clouds common costa fauna feather feathery flight flit free freedom head high hovering lake maximus nature norway ocean ornithology paws peace purity rica river royal seabird seasons sterna summer sunrise svalbard sweden tail tern thallaseus vertebrate water wetlands white wild wilderness wildlif wildlife wing with