1) Angry crowd sounds 2) Apes owls 3) Bad audience response 4) Boos 5) Catcalls 6) Caterwauls 7) Derisive cries 8) Does owl impressions 9) Expresses displeasure 10) Funny owls, to owls 11) Heckling sounds 12) Hilarious sorts 13) Hostile calls 14) Jeers 15) Kin of bronx cheers 16) Laughfests 17) Makes like an owl 1) Criesofderision 2) Jeers