• a hill of
  • a rumor of
  • an applause of (Clapper)
  • an audience of (Clapper)
  • a comerical of (Clapper)
  • a reel of (Virginia)
  • a sharning of (Water)
  • a clique of (Yellow)
  • a brood of
  • a cauldron of
  • an eyrie of
  • a kettle of
  • a mews of
  • a nest of
  • a stooping of
  • a aerie of
  • a bazaar of
  • a congress of
  • a conspiracy of
  • a constable of
  • a parliament of
  • a rant of
  • a storytelling of
  • a tower of
  • an unkindness of
  • a strop of
  • a league of
  • a sorority of
  • a Gallup of
  • a tailback of
  • a crowd of
  • a flock of
  • a mob of
  • a firing squad of
  • a marathon of
  • a marathon of
  • a race of (greater)
  • a worm of
  • a flight of
  • a pair of
  • a swoop of
  • a singular of
  • a company of
  • a building of
  • a clamor of
  • a clamour of
  • a concentration of
  • a congregation of
  • a flock of
  • a murmuration of
  • a parish of
  • a parliament of
  • a rookery of
  • a shoal of
  • a story telling of
  • a wing of
  • a family of
  • a pair of
  • a collar of
  • a hill of
  • a nocturne of
  • a distraction of (yellow)
  • a spring of (yellow)
  • Rails
  • Rails
  • Rails
  • Rails
  • Rails
  • Rails
  • Rails
  • Rails
  • Raptors
  • Raptors
  • Raptors
  • Raptors
  • Raptors
  • Raptors
  • Raptors
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Ravens
  • Razorbills
  • Redheads
  • Redheads
  • Redpolls
  • Red-tailed tropic birds
  • Redwings
  • Rheas
  • Rheas
  • Riflemen
  • Roadrunners
  • Roadrunners
  • Roadrunners
  • Robins
  • Rollers
  • Rollers
  • Rollers
  • Rollers
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rooks
  • Rosellas
  • Rosellas
  • Ruffs
  • Ruff
  • Rurus
  • Rumps
  • Rumps