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