a bevy of doves
a bouquet of pheasants
a charm of goldfinches
a chattering of chicks  
a conspiracy of ravens
a deceit of lapwings
a descent of woodpeckers
an exaltation of larks
a gaggle of geese
a hedge of herons
a host of sparrows
a huddle of penguins
a kettle of hawks
a lamentation of swans
a mob of emus
a murder of crows
a murmuration of starlings
a mustering of storks
a parliament of owls
a scold of jays  
a watch of nightingales  
a wisp of snipes
an ostentation of peacocks